{"id":11361,"date":"2026-07-06T02:00:38","date_gmt":"2026-07-05T18:00:38","guid":{"rendered":"https:\/\/toquartz.com\/?p=11361"},"modified":"2026-02-28T08:33:01","modified_gmt":"2026-02-28T00:33:01","slug":"uv-vis-quartz-cuvette-vs-glass","status":"publish","type":"post","link":"https:\/\/toquartz.com\/ru\/uv-vis-quartz-cuvette-vs-glass\/","title":{"rendered":"\u041a\u0432\u0430\u0440\u0446\u0435\u0432\u0430\u044f \u043a\u044e\u0432\u0435\u0442\u0430 \u0434\u043b\u044f \u0423\u0424-\u0412\u0438\u0441 \u0438 \u0441\u0442\u0435\u043a\u043b\u044f\u043d\u043d\u0430\u044f \u043a\u044e\u0432\u0435\u0442\u0430: \u043f\u0440\u043e\u043f\u0443\u0441\u043a\u0430\u043d\u0438\u0435, \u0442\u043e\u0447\u043d\u043e\u0441\u0442\u044c \u0438 \u043e\u0441\u043e\u0431\u0435\u043d\u043d\u043e\u0441\u0442\u0438 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u043e\u0432"},"content":{"rendered":"<p>\u0412\u044b\u0431\u043e\u0440 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\u0430\u0431\u0441\u043e\u043b\u044e\u0442\u043d\u043e\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 \u043f\u043e\u043a\u0430\u0437\u0430\u0442\u0435\u043b\u044f \u043f\u0440\u0435\u043b\u043e\u043c\u043b\u0435\u043d\u0438\u044f, \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0435\u0433\u043e \u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0441\u0442\u0432\u0435\u043d\u043d\u0430\u044f \u043e\u0434\u043d\u043e\u0440\u043e\u0434\u043d\u043e\u0441\u0442\u044c \u043f\u043e \u0432\u0441\u0435\u043c\u0443 \u043e\u043f\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u043c\u0443 \u043e\u043a\u043d\u0443 \u043a\u044e\u0432\u0435\u0442\u044b: <strong>\u0412\u044b\u0441\u043e\u043a\u043e\u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0435 \u0437\u0430\u0433\u043e\u0442\u043e\u0432\u043a\u0438 \u0438\u0437 \u043f\u043b\u0430\u0432\u043b\u0435\u043d\u043e\u0433\u043e \u043a\u0432\u0430\u0440\u0446\u0430 \u0434\u0435\u043c\u043e\u043d\u0441\u0442\u0440\u0438\u0440\u0443\u044e\u0442 \u043e\u0434\u043d\u043e\u0440\u043e\u0434\u043d\u043e\u0441\u0442\u044c \u043f\u043e\u043a\u0430\u0437\u0430\u0442\u0435\u043b\u044f \u043f\u0440\u0435\u043b\u043e\u043c\u043b\u0435\u043d\u0438\u044f, \u043d\u0435 \u043f\u0440\u0435\u0432\u044b\u0448\u0430\u044e\u0449\u0443\u044e \u00b15 \u00d7 10\u207b\u2076<\/strong>, \u0447\u0442\u043e \u0433\u0430\u0440\u0430\u043d\u0442\u0438\u0440\u0443\u0435\u0442, \u0447\u0442\u043e \u0438\u0441\u043a\u0430\u0436\u0435\u043d\u0438\u0435 \u0432\u043e\u043b\u043d\u043e\u0432\u043e\u0433\u043e \u0444\u0440\u043e\u043d\u0442\u0430, \u0432\u044b\u0437\u0432\u0430\u043d\u043d\u043e\u0435 \u0441\u0442\u0435\u043d\u043a\u0430\u043c\u0438 \u043a\u044e\u0432\u0435\u0442\u044b, \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043f\u0440\u0435\u043d\u0435\u0431\u0440\u0435\u0436\u0438\u043c\u043e \u043c\u0430\u043b\u044b\u043c \u043f\u043e \u0441\u0440\u0430\u0432\u043d\u0435\u043d\u0438\u044e \u0441 \u0444\u043e\u0442\u043e\u043c\u0435\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0442\u043e\u0447\u043d\u043e\u0441\u0442\u044c\u044e \u043f\u0440\u0438\u0431\u043e\u0440\u0430.<\/p>\n<p>\u041a\u0430\u0447\u0435\u0441\u0442\u0432\u043e \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043f\u043e\u0432\u0435\u0440\u0445\u043d\u043e\u0441\u0442\u0438 \u043d\u0430\u043f\u0440\u044f\u043c\u0443\u044e \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u044f\u0435\u0442 \u043f\u043e\u0442\u0435\u0440\u0438 \u043d\u0430 \u0440\u0430\u0441\u0441\u0435\u044f\u043d\u0438\u0435 \u043d\u0430 \u0441\u0442\u0435\u043d\u043a\u0430\u0445 \u043a\u044e\u0432\u0435\u0442\u044b. \u041f\u0440\u0438 \u043f\u043e\u043b\u0438\u0440\u043e\u0432\u043a\u0435 \u043f\u043b\u0430\u0432\u043b\u0435\u043d\u043e\u0433\u043e \u043a\u0432\u0430\u0440\u0446\u0430 \u0434\u043e \u043e\u043f\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0430 \u0434\u043e\u0441\u0442\u0438\u0433\u0430\u044e\u0442\u0441\u044f \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f \u0448\u0435\u0440\u043e\u0445\u043e\u0432\u0430\u0442\u043e\u0441\u0442\u0438 \u043f\u043e\u0432\u0435\u0440\u0445\u043d\u043e\u0441\u0442\u0438 \u043d\u0438\u0436\u0435 <strong>0,5 \u043d\u043c RMS (\u0441\u0440\u0435\u0434\u043d\u0435\u043a\u0432\u0430\u0434\u0440\u0430\u0442\u0438\u0447\u043d\u043e\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435)<\/strong>, \u0447\u0442\u043e \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0443\u0434\u0435\u0440\u0436\u0430\u0442\u044c \u043f\u043e\u0442\u0435\u0440\u0438 \u043d\u0430 \u043f\u043e\u0432\u0435\u0440\u0445\u043d\u043e\u0441\u0442\u043d\u043e\u043c \u0440\u0430\u0441\u0441\u0435\u0438\u0432\u0430\u043d\u0438\u0438 \u043d\u0430 \u0443\u0440\u043e\u0432\u043d\u0435 \u043d\u0438\u0436\u0435 0,11 TP3T \u0432\u043e \u0432\u0441\u0435\u043c \u0434\u0438\u0430\u043f\u0430\u0437\u043e\u043d\u0435 \u0423\u0424-\u0412\u0438\u0434. \u041f\u043e\u043b\u0438\u0440\u043e\u0432\u043a\u0430 \u0432 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0438\u0438 \u0441 \u044d\u0442\u0438\u043c\u0438 \u0442\u0440\u0435\u0431\u043e\u0432\u0430\u043d\u0438\u044f\u043c\u0438 \u0442\u0440\u0435\u0431\u0443\u0435\u0442 \u043c\u043d\u043e\u0433\u043e\u0441\u0442\u0443\u043f\u0435\u043d\u0447\u0430\u0442\u043e\u0439 \u0448\u043b\u0438\u0444\u043e\u0432\u043a\u0438 \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u0430\u0431\u0440\u0430\u0437\u0438\u0432\u043e\u0432, \u0441\u0442\u0430\u043d\u043e\u0432\u044f\u0449\u0438\u0445\u0441\u044f \u0432\u0441\u0435 \u043c\u0435\u043b\u044c\u0447\u0435, \u0441 \u043f\u043e\u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0435\u0439 \u043f\u043e\u043b\u0438\u0440\u043e\u0432\u043a\u043e\u0439 \u0441\u043c\u043e\u043b\u043e\u0439 \u0438\u043b\u0438 \u043c\u0430\u0433\u043d\u0438\u0442\u043e\u0440\u0435\u043e\u043b\u043e\u0433\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0444\u0438\u043d\u0438\u0448\u043d\u043e\u0439 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u043e\u0439 \u2014 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0432, \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u043d\u044b\u0445 \u0434\u043b\u044f \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0441\u0442\u0432\u0430 \u043e\u043f\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u0438\u0437\u0434\u0435\u043b\u0438\u0439 \u0438 \u043e\u0442\u043b\u0438\u0447\u0430\u044e\u0449\u0438\u0445\u0441\u044f \u043e\u0442 \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0441\u0442\u0432\u0430 \u043b\u0430\u0431\u043e\u0440\u0430\u0442\u043e\u0440\u043d\u043e\u0439 \u0441\u0442\u0435\u043a\u043b\u044f\u043d\u043d\u043e\u0439 \u043f\u043e\u0441\u0443\u0434\u044b.<\/p>\n<p><strong>\u0414\u0432\u0443\u0441\u0442\u043e\u0440\u043e\u043d\u043d\u0438\u0435 \u043a\u044e\u0432\u0435\u0442\u044b \u0434\u043b\u044f \u043f\u043e\u043b\u0438\u0440\u043e\u0432\u043a\u0438<\/strong> \u2014 \u043f\u0440\u0438 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u043e\u043f\u0442\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0430 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0430 \u0442\u043e\u043b\u044c\u043a\u043e \u043d\u0430 \u0434\u0432\u0443\u0445 \u0433\u0440\u0430\u043d\u044f\u0445, \u043f\u0435\u0440\u043f\u0435\u043d\u0434\u0438\u043a\u0443\u043b\u044f\u0440\u043d\u044b\u0445 \u043b\u0443\u0447\u0443 \u0441\u0432\u0435\u0442\u0430, \u2014 \u0432\u043f\u043e\u043b\u043d\u0435 \u043f\u043e\u0434\u0445\u043e\u0434\u044f\u0442 \u0434\u043b\u044f \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u044b\u0445 \u0438\u0437\u043c\u0435\u0440\u0435\u043d\u0438\u0439 \u043f\u043e\u0433\u043b\u043e\u0449\u0435\u043d\u0438\u044f. <strong>\u0427\u0435\u0442\u044b\u0440\u0435\u0445\u0441\u0442\u043e\u0440\u043e\u043d\u043d\u0438\u0435 \u043a\u044e\u0432\u0435\u0442\u044b \u0434\u043b\u044f \u043f\u043e\u043b\u0438\u0440\u043e\u0432\u043a\u0438<\/strong>, \u0433\u0434\u0435 \u0432\u0441\u0435 \u0447\u0435\u0442\u044b\u0440\u0435 \u0432\u0435\u0440\u0442\u0438\u043a\u0430\u043b\u044c\u043d\u044b\u0435 \u0433\u0440\u0430\u043d\u0438 \u0438\u043c\u0435\u044e\u0442 \u043e\u0434\u0438\u043d\u0430\u043a\u043e\u0432\u0443\u044e \u043e\u043f\u0442\u0438\u0447\u0435\u0441\u043a\u0443\u044e \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0443, \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u044b \u0434\u043b\u044f \u0444\u043b\u0443\u043e\u0440\u0435\u0441\u0446\u0435\u043d\u0442\u043d\u043e\u0439 \u0441\u043f\u0435\u043a\u0442\u0440\u043e\u0441\u043a\u043e\u043f\u0438\u0438, <a href=\"https:\/\/www.sciencedirect.com\/topics\/medicine-and-dentistry\/circular-dichroism\">\u0446\u0438\u0440\u043a\u0443\u043b\u044f\u0440\u043d\u044b\u0439 \u0434\u0438\u0445\u0440\u043e\u0438\u0437\u043c (CD)<\/a><sup id=\"fnref1:1\"><a href=\"#fn:1\" class=\"footnote-ref\">1<\/a><\/sup>, \u0430 \u0442\u0430\u043a\u0436\u0435 \u0438\u0437\u043c\u0435\u0440\u0435\u043d\u0438\u044f \u043e\u043f\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e \u0432\u0440\u0430\u0449\u0435\u043d\u0438\u044f, \u043f\u0440\u0438 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0438\u0437\u043b\u0443\u0447\u0435\u043d\u0438\u0435 \u043f\u043e\u0441\u0442\u0443\u043f\u0430\u0435\u0442 \u0438\u043b\u0438 \u0432\u044b\u0445\u043e\u0434\u0438\u0442 \u0447\u0435\u0440\u0435\u0437 \u0431\u043e\u043a\u043e\u0432\u044b\u0435 \u0433\u0440\u0430\u043d\u0438.<\/p>\n<h4>\u041a\u0440\u0430\u0442\u043a\u0438\u0439 \u043e\u0431\u0437\u043e\u0440 \u043e\u043f\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043a \u043a\u0432\u0430\u0440\u0446\u0435\u0432\u044b\u0445 \u043a\u044e\u0432\u0435\u0442<\/h4>\n<table>\n<thead>\n<tr>\n<th>\u041f\u0430\u0440\u0430\u043c\u0435\u0442\u0440<\/th>\n<th>\u041f\u043b\u0430\u0432\u043b\u0435\u043d\u044b\u0439 \u043a\u0432\u0430\u0440\u0446 \u0423\u0424-\u043a\u043b\u0430\u0441\u0441\u0430<\/th>\n<th>\u0421\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u044b\u0439 \u043a\u0432\u0430\u0440\u0446<\/th>\n<th>\u041a\u0440\u0435\u043c\u043d\u0435\u0437\u0435\u043c \u043f\u043b\u0430\u0432\u043b\u0435\u043d\u044b\u0439 \u043a\u043b\u0430\u0441\u0441\u0430 IR<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u0414\u0438\u0430\u043f\u0430\u0437\u043e\u043d \u043f\u0440\u043e\u043f\u0443\u0441\u043a\u0430\u043d\u0438\u044f (\u043d\u043c)<\/td>\n<td>170\u20132 700<\/td>\n<td>190\u20132 700<\/td>\n<td>220\u20133 500<\/td>\n<\/tr>\n<tr>\n<td>\u0421\u043e\u0434\u0435\u0440\u0436\u0430\u043d\u0438\u0435 OH (ppm)<\/td>\n<td>&lt; 10<\/td>\n<td>400\u20131 000<\/td>\n<td>&lt; 10<\/td>\n<\/tr>\n<tr>\n<td>\u041f\u0440\u043e\u043f\u0443\u0441\u043a\u0430\u043d\u0438\u0435 \u043f\u0440\u0438 \u0434\u043b\u0438\u043d\u0435 \u0432\u043e\u043b\u043d\u044b 200 \u043d\u043c (%)<\/td>\n<td>&gt; 85<\/td>\n<td>75\u201385<\/td>\n<td>60\u201375<\/td>\n<\/tr>\n<tr>\n<td>\u041f\u0440\u043e\u043f\u0443\u0441\u043a\u0430\u043d\u0438\u0435 \u043f\u0440\u0438 \u0434\u043b\u0438\u043d\u0435 \u0432\u043e\u043b\u043d\u044b 260 \u043d\u043c (%)<\/td>\n<td>&gt; 92<\/td>\n<td>&gt; 90<\/td>\n<td>&gt; 88<\/td>\n<\/tr>\n<tr>\n<td>\u041f\u043e\u043a\u0430\u0437\u0430\u0442\u0435\u043b\u044c \u043f\u0440\u0435\u043b\u043e\u043c\u043b\u0435\u043d\u0438\u044f \u043f\u0440\u0438 589 \u043d\u043c<\/td>\n<td>1.458<\/td>\n<td>1.458<\/td>\n<td>1.458<\/td>\n<\/tr>\n<tr>\n<td>\u0421\u0440\u0435\u0434\u043d\u0435\u043a\u0432\u0430\u0434\u0440\u0430\u0442\u0438\u0447\u043d\u043e\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 \u0448\u0435\u0440\u043e\u0445\u043e\u0432\u0430\u0442\u043e\u0441\u0442\u0438 \u043f\u043e\u0432\u0435\u0440\u0445\u043d\u043e\u0441\u0442\u0438 (\u043d\u043c)<\/td>\n<td>&lt; 0.5<\/td>\n<td>&lt; 0.5<\/td>\n<td>&lt; 0.5<\/td>\n<\/tr>\n<tr>\n<td>\u041c\u0435\u0442\u0430\u043b\u043b\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u043f\u0440\u0438\u043c\u0435\u0441\u0438 (ppb)<\/td>\n<td>&lt; 20<\/td>\n<td>&lt; 50<\/td>\n<td>&lt; 20<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<p><img decoding=\"async\" src=\"https:\/\/toquartz.com\/wp-content\/uploads\/2026\/02\/Matched-Pair-UV-Vis-Quartz-Cuvette-for-Laboratory-Bench-UV-Vis-Spectrophotometry.webp\" alt=\"Matched-Pair UV Vis Quartz Cuvette for Laboratory Bench UV-Vis Spectrophotometry\" title=\"Matched-Pair UV Vis Quartz Cuvette for Laboratory Bench UV-Vis Spectrophotometry\" \/><\/p>\n<h2>\u0412\u044b\u0431\u043e\u0440 \u0434\u043b\u0438\u043d\u044b \u043f\u0443\u0442\u0438 \u0432 \u043a\u0432\u0430\u0440\u0446\u0435\u0432\u044b\u0445 \u043a\u044e\u0432\u0435\u0442\u0430\u0445 \u0434\u043b\u044f \u0423\u0424-\u0412\u0438\u0441-\u0441\u043f\u0435\u043a\u0442\u0440\u043e\u0444\u043e\u0442\u043e\u043c\u0435\u0442\u0440\u0438\u0438 \u0438 \u0435\u0433\u043e \u0432\u043b\u0438\u044f\u043d\u0438\u0435 \u043d\u0430 \u0442\u043e\u0447\u043d\u043e\u0441\u0442\u044c \u0438\u0437\u043c\u0435\u0440\u0435\u043d\u0438\u0439<\/h2>\n<p>\u041f\u043e\u043c\u0438\u043c\u043e \u043f\u0440\u043e\u0437\u0440\u0430\u0447\u043d\u043e\u0441\u0442\u0438 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u0430, \u0434\u043b\u0438\u043d\u0430 \u043f\u0443\u0442\u0438 \u0432 \u043a\u0432\u0430\u0440\u0446\u0435\u0432\u043e\u0439 \u043a\u044e\u0432\u0435\u0442\u0435 \u0434\u043b\u044f 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\u043f\u0443\u0442\u0438: <strong>A = \u03b5 \u00d7 c \u00d7 l<\/strong>, \u0433\u0434\u0435 A \u2014 \u043e\u043f\u0442\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u043f\u043b\u043e\u0442\u043d\u043e\u0441\u0442\u044c (\u0431\u0435\u0437\u0440\u0430\u0437\u043c\u0435\u0440\u043d\u0430\u044f \u0432\u0435\u043b\u0438\u0447\u0438\u043d\u0430), \u03b5 \u2014 \u043c\u043e\u043b\u044f\u0440\u043d\u044b\u0439 \u043a\u043e\u044d\u0444\u0444\u0438\u0446\u0438\u0435\u043d\u0442 \u043e\u0441\u043b\u0430\u0431\u043b\u0435\u043d\u0438\u044f (\u041b\u00b7\u043c\u043e\u043b\u044c\u207b\u00b9\u00b7\u0441\u043c\u207b\u00b9), c \u2014 \u043c\u043e\u043b\u044f\u0440\u043d\u0430\u044f \u043a\u043e\u043d\u0446\u0435\u043d\u0442\u0440\u0430\u0446\u0438\u044f (\u043c\u043e\u043b\u044c\u00b7\u043b\u207b\u00b9), \u0430 l \u2014 \u0434\u043b\u0438\u043d\u0430 \u043f\u0443\u0442\u0438 (\u0441\u043c). \u042d\u0442\u043e\u0442 \u0437\u0430\u043a\u043e\u043d \u043f\u0440\u0435\u0434\u0441\u043a\u0430\u0437\u044b\u0432\u0430\u0435\u0442 \u0441\u0442\u0440\u043e\u0433\u043e \u043b\u0438\u043d\u0435\u0439\u043d\u0443\u044e \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u044c \u043c\u0435\u0436\u0434\u0443 \u043f\u043e\u0433\u043b\u043e\u0449\u0435\u043d\u0438\u0435\u043c \u0438 \u043a\u043e\u043d\u0446\u0435\u043d\u0442\u0440\u0430\u0446\u0438\u0435\u0439 \u043f\u0440\u0438 \u0444\u0438\u043a\u0441\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0439 \u0434\u043b\u0438\u043d\u0435 \u043f\u0443\u0442\u0438, \u0430 \u0442\u0430\u043a\u0436\u0435 \u043c\u0435\u0436\u0434\u0443 \u043f\u043e\u0433\u043b\u043e\u0449\u0435\u043d\u0438\u0435\u043c \u0438 \u0434\u043b\u0438\u043d\u043e\u0439 \u043f\u0443\u0442\u0438 \u043f\u0440\u0438 \u0444\u0438\u043a\u0441\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0439 \u043a\u043e\u043d\u0446\u0435\u043d\u0442\u0440\u0430\u0446\u0438\u0438 \u2014 \u043e\u0434\u043d\u0430\u043a\u043e \u044d\u0442\u0430 \u043b\u0438\u043d\u0435\u0439\u043d\u043e\u0441\u0442\u044c \u0441\u043e\u0445\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u0442\u043e\u043b\u044c\u043a\u043e \u0432 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0451\u043d\u043d\u043e\u043c \u0434\u0438\u0430\u043f\u0430\u0437\u043e\u043d\u0435.<\/p>\n<p>\u041e\u0442\u043a\u043b\u043e\u043d\u0435\u043d\u0438\u044f \u043e\u0442 \u043b\u0438\u043d\u0435\u0439\u043d\u043e\u0441\u0442\u0438 \u0437\u0430\u043a\u043e\u043d\u0430 \u0411\u0435\u0440\u0430-\u041b\u0430\u043c\u0431\u0435\u0440\u0442\u0430 \u0441\u0442\u0430\u043d\u043e\u0432\u044f\u0442\u0441\u044f \u0437\u0430\u043c\u0435\u0442\u043d\u044b\u043c\u0438, \u043a\u043e\u0433\u0434\u0430 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f \u043f\u043e\u0433\u043b\u043e\u0449\u0435\u043d\u0438\u044f \u043f\u0440\u0435\u0432\u044b\u0448\u0430\u044e\u0442 \u043f\u0440\u0438\u043c\u0435\u0440\u043d\u043e <strong>1,5 \u0410\u0415 (\u0447\u0442\u043e \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u0435\u0442 \u043a\u043e\u044d\u0444\u0444\u0438\u0446\u0438\u0435\u043d\u0442\u0443 \u043f\u0440\u043e\u043f\u0443\u0441\u043a\u0430\u043d\u0438\u044f \u043d\u0438\u0436\u0435 3,2%)<\/strong>. \u041f\u0440\u0438 \u0432\u044b\u0441\u043e\u043a\u043e\u0439 \u043e\u043f\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u043f\u043b\u043e\u0442\u043d\u043e\u0441\u0442\u0438 \u0434\u043e\u043b\u044f \u0440\u0430\u0441\u0441\u0435\u044f\u043d\u043d\u043e\u0433\u043e \u0441\u0432\u0435\u0442\u0430 \u0432\u043d\u0443\u0442\u0440\u0438 \u0441\u043f\u0435\u043a\u0442\u0440\u043e\u0444\u043e\u0442\u043e\u043c\u0435\u0442\u0440\u0430 \u2014 \u0438\u0437\u043b\u0443\u0447\u0435\u043d\u0438\u044f, \u043a\u043e\u0442\u043e\u0440\u043e\u0435 \u043f\u043e\u043f\u0430\u0434\u0430\u0435\u0442 \u043d\u0430 \u0434\u0435\u0442\u0435\u043a\u0442\u043e\u0440, \u043d\u0435 \u043f\u0440\u043e\u0445\u043e\u0434\u044f \u0447\u0435\u0440\u0435\u0437 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\u044d\u043a\u0441\u0442\u0440\u0430\u043a\u0442\u044b<\/td>\n<\/tr>\n<tr>\n<td>1<\/td>\n<td>0,40\u20130,70<\/td>\n<td>\u041f\u0440\u043e\u0431\u044b \u0441\u043e \u0441\u0440\u0435\u0434\u043d\u0435\u0439 \u043a\u043e\u043d\u0446\u0435\u043d\u0442\u0440\u0430\u0446\u0438\u0435\u0439<\/td>\n<\/tr>\n<tr>\n<td>10<\/td>\n<td>3,00\u20133,50<\/td>\n<td>\u0421\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u044b\u0435 \u043f\u0440\u043e\u0446\u0435\u0434\u0443\u0440\u044b \u0438\u0437\u043c\u0435\u0440\u0435\u043d\u0438\u0439 \u0432 \u0423\u0424-\u0412\u0438\u0441-\u0434\u0438\u0430\u043f\u0430\u0437\u043e\u043d\u0435<\/td>\n<\/tr>\n<tr>\n<td>20<\/td>\n<td>6.00\u20137.00<\/td>\n<td>\u0420\u0430\u0437\u0431\u0430\u0432\u044c\u0442\u0435 \u043f\u0440\u043e\u0431\u044b \u043e\u043a\u0440\u0443\u0436\u0430\u044e\u0449\u0435\u0439 \u0441\u0440\u0435\u0434\u044b<\/td>\n<\/tr>\n<tr>\n<td>50<\/td>\n<td>15,0\u201317,0<\/td>\n<td>\u0410\u043d\u0430\u043b\u0438\u0437 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\u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f\u043c\u0438 \u0434\u0432\u0443\u0441\u0442\u043e\u0440\u043e\u043d\u043d\u0435\u0439 \u043f\u043e\u043b\u0438\u0440\u043e\u0432\u043a\u0438 \u2014 \u043e\u043f\u0440\u0430\u0432\u0434\u0430\u043d\u043e \u043b\u0438\u0448\u044c \u0432 \u0442\u043e\u043c \u0441\u043b\u0443\u0447\u0430\u0435, \u0435\u0441\u043b\u0438 \u0433\u0435\u043e\u043c\u0435\u0442\u0440\u0438\u044f \u0438\u0437\u043c\u0435\u0440\u0435\u043d\u0438\u044f \u0442\u0440\u0435\u0431\u0443\u0435\u0442 \u0431\u043e\u043a\u043e\u0432\u043e\u0433\u043e \u043e\u043f\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e \u0434\u043e\u0441\u0442\u0443\u043f\u0430.<\/p>\n<p><strong>\u041f\u0440\u0430\u043a\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u043c\u0435\u0442\u043e\u0434 \u0438\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438<\/strong>: \u0443 \u0434\u0432\u0443\u0441\u0442\u043e\u0440\u043e\u043d\u043d\u0438\u0445 \u043f\u043e\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0445 \u043a\u044e\u0432\u0435\u0442 \u043f\u0440\u0438 \u0440\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0435\u043d\u0438\u0438 \u043f\u043e\u0434 \u043a\u043e\u0441\u044b\u043c \u043e\u0441\u0432\u0435\u0449\u0435\u043d\u0438\u0435\u043c \u043d\u0430 \u0431\u043e\u043a\u043e\u0432\u044b\u0445 \u0441\u0442\u0435\u043d\u043a\u0430\u0445 \u043e\u0431\u044b\u0447\u043d\u043e \u043d\u0430\u0431\u043b\u044e\u0434\u0430\u0435\u0442\u0441\u044f \u0432\u0438\u0434\u0438\u043c\u0430\u044f \u043d\u0435\u043f\u0440\u043e\u0437\u0440\u0430\u0447\u043d\u043e\u0441\u0442\u044c \u0438\u043b\u0438 \u043c\u0430\u0442\u043e\u0432\u044b\u0439 \u0432\u0438\u0434, \u0442\u043e\u0433\u0434\u0430 \u043a\u0430\u043a \u0447\u0435\u0442\u044b\u0440\u0435\u0445\u0441\u0442\u043e\u0440\u043e\u043d\u043d\u0438\u0435 \u043f\u043e\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0435 \u043a\u044e\u0432\u0435\u0442\u044b \u0432\u044b\u0433\u043b\u044f\u0434\u044f\u0442 \u043e\u0434\u0438\u043d\u0430\u043a\u043e\u0432\u043e \u043f\u0440\u043e\u0437\u0440\u0430\u0447\u043d\u044b\u043c\u0438 \u0441\u043e \u0432\u0441\u0435\u0445 \u0441\u0442\u043e\u0440\u043e\u043d.<\/p>\n<h3>\u041a\u044e\u0432\u0435\u0442\u044b \u0438\u0437 \u043a\u0432\u0430\u0440\u0446\u0430 \u0441 \u0447\u0451\u0440\u043d\u044b\u043c\u0438 \u0441\u0442\u0435\u043d\u043a\u0430\u043c\u0438 \u0438 \u043f\u043e\u0434\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0430\u0440\u0430\u0437\u0438\u0442\u043d\u043e\u0433\u043e \u0441\u0432\u0435\u0442\u0430 \u043f\u0440\u0438 \u0444\u043b\u0443\u043e\u0440\u0435\u0441\u0446\u0435\u043d\u0442\u043d\u044b\u0445 \u0438\u0437\u043c\u0435\u0440\u0435\u043d\u0438\u044f\u0445<\/h3>\n<p>\u0421\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u044b\u0435 \u0447\u0435\u0442\u044b\u0440\u0435\u0445\u0441\u0442\u043e\u0440\u043e\u043d\u043d\u0438\u0435 \u043a\u044e\u0432\u0435\u0442\u044b \u0434\u043b\u044f \u043f\u043e\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f, \u0445\u043e\u0442\u044f \u0438 \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u044e\u0442 \u043e\u043f\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0434\u043e\u0441\u0442\u0443\u043f \u0441\u043e \u0432\u0441\u0435\u0445 \u0441\u0442\u043e\u0440\u043e\u043d, \u043f\u0440\u0438\u0432\u043e\u0434\u044f\u0442 \u043a \u043f\u043e\u044f\u0432\u043b\u0435\u043d\u0438\u044e \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e \u0430\u0440\u0442\u0435\u0444\u0430\u043a\u0442\u0430 \u043f\u0440\u0438 \u0438\u0437\u043c\u0435\u0440\u0435\u043d\u0438\u0438 \u0444\u043b\u0443\u043e\u0440\u0435\u0441\u0446\u0435\u043d\u0446\u0438\u0438: <strong>\u043e\u0442\u0440\u0430\u0436\u0435\u043d\u043d\u043e\u0435 \u0432\u043e\u0437\u0431\u0443\u0436\u0434\u0430\u044e\u0449\u0435\u0435 \u0438\u0437\u043b\u0443\u0447\u0435\u043d\u0438\u0435 \u043e\u0442 \u0432\u043d\u0443\u0442\u0440\u0435\u043d\u043d\u0438\u0445 \u0441\u0442\u0435\u043d\u043e\u043a \u043a\u044e\u0432\u0435\u0442\u044b \u043f\u043e\u043f\u0430\u0434\u0430\u0435\u0442 \u043d\u0430 \u0434\u0435\u0442\u0435\u043a\u0442\u043e\u0440 \u0438\u0437\u043b\u0443\u0447\u0435\u043d\u0438\u044f<\/strong>, \u0432 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u0435 \u0447\u0435\u0433\u043e \u043d\u0430 \u0441\u043f\u0435\u043a\u0442\u0440 \u0438\u0441\u0442\u0438\u043d\u043d\u043e\u0439 \u0444\u043b\u0443\u043e\u0440\u0435\u0441\u0446\u0435\u043d\u0446\u0438\u0438 \u043d\u0430\u043a\u043b\u0430\u0434\u044b\u0432\u0430\u0435\u0442\u0441\u044f \u0444\u043e\u043d\u043e\u0432\u044b\u0439 \u0441\u0438\u0433\u043d\u0430\u043b. \u042d\u0442\u043e\u0442 \u0430\u0440\u0442\u0435\u0444\u0430\u043a\u0442 \u043e\u0441\u043e\u0431\u0435\u043d\u043d\u043e \u0432\u044b\u0440\u0430\u0436\u0435\u043d \u043f\u0440\u0438 \u0434\u043b\u0438\u043d\u0430\u0445 \u0432\u043e\u043b\u043d \u0438\u0437\u043b\u0443\u0447\u0435\u043d\u0438\u044f, \u0431\u043b\u0438\u0437\u043a\u0438\u0445 \u043a \u0434\u043b\u0438\u043d\u0435 \u0432\u043e\u043b\u043d\u044b \u0432\u043e\u0437\u0431\u0443\u0436\u0434\u0435\u043d\u0438\u044f \u2014 \u0432 \u043e\u0431\u043b\u0430\u0441\u0442\u0438 \u043f\u0438\u043a\u0430 \u0420\u0430\u043c\u0430\u043d\u043e\u0432\u0441\u043a\u043e\u0433\u043e \u0440\u0430\u0441\u0441\u0435\u044f\u043d\u0438\u044f \u0432\u043e\u0434\u044b \u0438 \u0432 \u043d\u0430\u0447\u0430\u043b\u044c\u043d\u043e\u0439 \u0447\u0430\u0441\u0442\u0438 \u043f\u043e\u043b\u043e\u0441\u044b \u0444\u043b\u0443\u043e\u0440\u0435\u0441\u0446\u0435\u043d\u0442\u043d\u043e\u0433\u043e \u0438\u0437\u043b\u0443\u0447\u0435\u043d\u0438\u044f.<\/p>\n<p>\u041a\u0432\u0430\u0440\u0446\u0435\u0432\u044b\u0435 \u043a\u044e\u0432\u0435\u0442\u044b \u0441 \u0447\u0451\u0440\u043d\u044b\u043c\u0438 \u0441\u0442\u0435\u043d\u043a\u0430\u043c\u0438 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0442 \u0443\u0441\u0442\u0440\u0430\u043d\u0438\u0442\u044c \u044d\u0442\u043e\u0442 \u0430\u0440\u0442\u0435\u0444\u0430\u043a\u0442 \u0437\u0430 \u0441\u0447\u0451\u0442 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f <strong>\u043d\u0435\u043f\u0440\u043e\u0437\u0440\u0430\u0447\u043d\u043e\u0435 \u0447\u0451\u0440\u043d\u043e\u0435 \u043f\u043e\u043a\u0440\u044b\u0442\u0438\u0435 \u043d\u0430 \u0434\u0432\u0443\u0445 \u0431\u043e\u043a\u043e\u0432\u044b\u0445 \u0438 \u0437\u0430\u0434\u043d\u0435\u0439 \u043f\u043e\u0432\u0435\u0440\u0445\u043d\u043e\u0441\u0442\u044f\u0445<\/strong>, \u043f\u0440\u0438 \u044d\u0442\u043e\u043c \u043f\u0440\u043e\u0437\u0440\u0430\u0447\u043d\u044b\u043c\u0438 \u0438 \u043e\u0442\u043f\u043e\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u043c\u0438 \u043e\u0441\u0442\u0430\u044e\u0442\u0441\u044f \u0442\u043e\u043b\u044c\u043a\u043e \u043f\u0435\u0440\u0435\u0434\u043d\u044f\u044f \u043f\u043e\u0432\u0435\u0440\u0445\u043d\u043e\u0441\u0442\u044c (\u0432\u0445\u043e\u0434\u043d\u0430\u044f \u0434\u043b\u044f \u0432\u043e\u0437\u0431\u0443\u0436\u0434\u0430\u044e\u0449\u0435\u0433\u043e \u0438\u0437\u043b\u0443\u0447\u0435\u043d\u0438\u044f) \u0438 \u043f\u043e\u0432\u0435\u0440\u0445\u043d\u043e\u0441\u0442\u044c \u0438\u0437\u043b\u0443\u0447\u0435\u043d\u0438\u044f \u043f\u043e\u0434 \u0443\u0433\u043b\u043e\u043c 90\u00b0, \u0447\u0442\u043e \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0447\u0435\u0440\u043d\u043e\u043c\u0443 \u043f\u043e\u043a\u0440\u044b\u0442\u0438\u044e \u043f\u043e\u0433\u043b\u043e\u0449\u0430\u0442\u044c \u043e\u0442\u0440\u0430\u0436\u0435\u043d\u043d\u043e\u0435 \u0438 \u0440\u0430\u0441\u0441\u0435\u044f\u043d\u043d\u043e\u0435 \u0432\u043e\u0437\u0431\u0443\u0436\u0434\u0430\u044e\u0449\u0435\u0435 \u0438\u0437\u043b\u0443\u0447\u0435\u043d\u0438\u0435 \u0434\u043e \u0442\u043e\u0433\u043e, \u043a\u0430\u043a \u043e\u043d\u043e \u0434\u043e\u0441\u0442\u0438\u0433\u043d\u0435\u0442 \u0434\u0435\u0442\u0435\u043a\u0442\u043e\u0440\u0430 \u0438\u0437\u043b\u0443\u0447\u0435\u043d\u0438\u044f, \u0441\u043d\u0438\u0436\u0430\u044f \u0444\u043e\u043d \u043f\u0430\u0440\u0430\u0437\u0438\u0442\u043d\u043e\u0433\u043e \u0441\u0432\u0435\u0442\u0430 \u043d\u0430 <strong>\u0432 10\u2013100 \u0440\u0430\u0437<\/strong> \u043f\u043e \u0441\u0440\u0430\u0432\u043d\u0435\u043d\u0438\u044e \u0441\u043e \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u044b\u043c\u0438 \u0447\u0435\u0442\u044b\u0440\u0435\u0445\u0433\u0440\u0430\u043d\u043d\u044b\u043c\u0438 \u043f\u043e\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u043c\u0438 \u043a\u044e\u0432\u0435\u0442\u0430\u043c\u0438, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u044b\u043c\u0438 \u0432 \u0444\u043b\u0443\u043e\u0440\u0435\u0441\u0446\u0435\u043d\u0442\u043d\u044b\u0445 \u044d\u043a\u0441\u043f\u0435\u0440\u0438\u043c\u0435\u043d\u0442\u0430\u0445. \u041a\u043e\u0440\u043f\u0443\u0441 \u043a\u044e\u0432\u0435\u0442\u044b \u0441 \u0447\u0451\u0440\u043d\u044b\u043c\u0438 \u0441\u0442\u0435\u043d\u043a\u0430\u043c\u0438 \u0438\u0437\u0433\u043e\u0442\u043e\u0432\u043b\u0435\u043d \u0438\u0437 \u043a\u0432\u0430\u0440\u0446\u0430, \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u044e\u0449\u0435\u0433\u043e \u0442\u0440\u0435\u0431\u043e\u0432\u0430\u043d\u0438\u044f\u043c \u043a \u0423\u0424-\u043f\u0440\u043e\u0437\u0440\u0430\u0447\u043d\u043e\u0441\u0442\u0438; \u043e\u0442\u043b\u0438\u0447\u0430\u0435\u0442\u0441\u044f \u043b\u0438\u0448\u044c \u043f\u043e\u043a\u0440\u044b\u0442\u0438\u0435 \u0432\u043d\u0435\u0448\u043d\u0435\u0439 \u043f\u043e\u0432\u0435\u0440\u0445\u043d\u043e\u0441\u0442\u0438.<\/p>\n<p><strong>The practical consequence of using a standard clear-walled cuvette instead of a black-walled cuvette in fluorescence spectroscopy is an elevated and spectrally structured background signal<\/strong> that reduces sensitivity, distorts emission spectra at wavelengths within approximately 30\u201350 nm of the excitation wavelength, and compromises quantitative accuracy for weakly fluorescing samples.<\/p>\n<h4>Quartz Cuvette Design Variants and Their Applications<\/h4>\n<table>\n<thead>\n<tr>\n<th>\u0422\u0438\u043f \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u0438<\/th>\n<th>\u041f\u043e\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0435 \u043b\u0438\u0446\u0430<\/th>\n<th>Stray Light Control<\/th>\n<th>\u041f\u0435\u0440\u0432\u0438\u0447\u043d\u043e\u0435 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u0435<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Two-sided polish<\/td>\n<td>2 (front and back)<\/td>\n<td>\u0421\u0442\u0430\u043d\u0434\u0430\u0440\u0442<\/td>\n<td>\u041f\u043e\u0433\u043b\u043e\u0449\u0435\u043d\u0438\u0435 \u0432 \u0423\u0424-\u0412\u0438\u0434-\u043e\u0431\u043b\u0430\u0441\u0442\u0438<\/td>\n<\/tr>\n<tr>\n<td>Four-sided polish<\/td>\n<td>4 (all vertical)<\/td>\n<td>\u0421\u0442\u0430\u043d\u0434\u0430\u0440\u0442<\/td>\n<td>Fluorescence, CD spectroscopy<\/td>\n<\/tr>\n<tr>\n<td>Black-walled<\/td>\n<td>2 (front + emission face)<\/td>\n<td>\u0420\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u043d\u044b\u0439<\/td>\n<td>Fluorescence with low background<\/td>\n<\/tr>\n<tr>\n<td>Flow-through<\/td>\n<td>2 or 4<\/td>\n<td>\u0421\u0442\u0430\u043d\u0434\u0430\u0440\u0442<\/td>\n<td>HPLC detectors, continuous flow<\/td>\n<\/tr>\n<tr>\n<td>Cylindrical<\/td>\n<td>Continuous curve<\/td>\n<td>\u041e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u043d\u044b\u0439<\/td>\n<td>Specialized circular dichroism<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<p><img decoding=\"async\" src=\"https:\/\/toquartz.com\/wp-content\/uploads\/2026\/02\/Open-Top-UV-Vis-Quartz-Cuvette-for-Micropipette-Sample-Dispensing-in-Bioanalytical-Work.webp\" alt=\"Open-Top UV Vis Quartz Cuvette for Micropipette Sample Dispensing in Bioanalytical Work\" title=\"Open-Top UV Vis Quartz Cuvette for Micropipette Sample Dispensing in Bioanalytical Work\" \/><\/p>\n<h2>Chemical Resistance Profiles of UV-Vis Quartz Cuvettes across Sample Matrices<\/h2>\n<p>The spectroscopic superiority of fused silica quartz is accompanied by an equally important advantage in chemical durability \u2014 one that determines the range of samples a cuvette can safely accommodate without degradation of its optical surfaces.<\/p>\n<h3>Acid and Organic Solvent Compatibility of Fused Silica<\/h3>\n<p>Fused silica's chemical resistance to acids and organic solvents derives directly from the thermodynamic stability of the Si-O bond network. <strong>The Si-O bond dissociation energy of approximately 452 kJ\/mol<\/strong> exceeds that of most metal-oxygen bonds in multicomponent glasses, which explains why fused silica withstands reagents that readily attack conventional laboratory glassware.<\/p>\n<p>Strong mineral acids \u2014 including hydrochloric acid at all concentrations, sulfuric acid up to approximately 70% concentration, nitric acid, and phosphoric acid at ambient temperature \u2014 do not measurably attack fused silica surfaces over typical laboratory exposure durations. Aqueous acidic buffers used routinely in biochemistry (citrate, acetate, phosphate, and MES buffers at pH 3\u20136) are similarly innocuous. Organic solvents represent an equally broad compatibility range: <strong>ethanol, methanol, isopropanol, acetone, acetonitrile, dimethyl sulfoxide (DMSO), dichloromethane, chloroform, toluene, and tetrahydrofuran (THF)<\/strong> are all compatible with fused silica quartz cuvettes without inducing swelling, leaching, or optical surface degradation.<\/p>\n<p><strong>A critical practical distinction<\/strong> separates fused silica quartz from polymeric cuvette materials: organic solvents that cause immediate PMMA or polystyrene cuvettes to craze, cloud, or dissolve \u2014 particularly chlorinated solvents, ketones, and aromatic hydrocarbons \u2014 are handled without consequence by quartz, making fused silica quartz cuvettes the only practical choice for UV-Vis measurements in non-aqueous solvent systems.<\/p>\n<h3>The Critical Exception of Hydrofluoric Acid and Concentrated Alkalis<\/h3>\n<p>Despite its broad chemical compatibility, fused silica quartz has two well-defined chemical vulnerabilities that must be observed without exception in laboratory practice.<\/p>\n<p>Hydrofluoric acid (HF) reacts with SiO\u2082 through the stoichiometric reaction <strong>SiO\u2082 + 4HF \u2192 SiF\u2084\u2191 + 2H\u2082O<\/strong>, producing volatile <a href=\"https:\/\/en.wikipedia.org\/wiki\/Silicon_tetrafluoride\">silicon tetrafluoride<\/a><sup id=\"fnref1:2\"><a href=\"#fn:2\" class=\"footnote-ref\">2<\/a><\/sup> and water. This reaction proceeds at measurable rates even at HF concentrations as low as 0.1% and at room temperature, etching the polished optical surfaces of quartz cuvettes within minutes of contact. Surface etching introduces permanent scatter losses and wavefront distortion that cannot be removed by cleaning; <strong>a quartz cuvette exposed to HF must be treated as irreparably damaged and removed from service<\/strong>. Concentrated sodium hydroxide (NaOH &gt; 30%) and potassium hydroxide (KOH &gt; 20%) attack fused silica through a slower dissolution mechanism \u2014 hydroxide ions break Si-O-Si linkages hydrolytically, with dissolution rates of approximately <strong>0.1\u20131 \u00b5m per hour<\/strong> at room temperature in concentrated alkali. Concentrated phosphoric acid at temperatures above 100\u00b0C also attacks fused silica at rates that increase sharply with temperature.<\/p>\n<p><strong>For samples requiring HF, concentrated alkali, or hot concentrated phosphoric acid, the appropriate alternative vessels are polytetrafluoroethylene (PTFE) or perfluoroalkoxy (PFA) containers<\/strong>, neither of which is reactive with these reagents.<\/p>\n<h4>Chemical Compatibility of Fused Silica Quartz Cuvettes<\/h4>\n<table>\n<thead>\n<tr>\n<th>Reagent Class<\/th>\n<th>\u041f\u0440\u0438\u043c\u0435\u0440<\/th>\n<th>\u0421\u043e\u0432\u043c\u0435\u0441\u0442\u0438\u043c\u043e\u0441\u0442\u044c<\/th>\n<th>\u041f\u0440\u0438\u043c\u0435\u0447\u0430\u043d\u0438\u044f<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Dilute mineral acids<\/td>\n<td>HCl, H\u2082SO\u2084, HNO\u2083<\/td>\n<td>\u2713 Compatible<\/td>\n<td>All concentrations, ambient temperature<\/td>\n<\/tr>\n<tr>\n<td>\u041e\u0440\u0433\u0430\u043d\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u0440\u0430\u0441\u0442\u0432\u043e\u0440\u0438\u0442\u0435\u043b\u0438<\/td>\n<td>EtOH, Acetone, DMSO, CHCl\u2083<\/td>\n<td>\u2713 Compatible<\/td>\n<td>No swelling or optical degradation<\/td>\n<\/tr>\n<tr>\n<td>Aqueous buffers (pH 3\u20139)<\/td>\n<td>PBS, HEPES, citrate<\/td>\n<td>\u2713 Compatible<\/td>\n<td>Standard biological pH range<\/td>\n<\/tr>\n<tr>\n<td>Dilute alkalis (&lt; 5%)<\/td>\n<td>NaOH, KOH<\/td>\n<td>\u26a0 Caution<\/td>\n<td>Slow attack; minimize exposure time<\/td>\n<\/tr>\n<tr>\n<td>Concentrated alkalis<\/td>\n<td>NaOH &gt; 30%<\/td>\n<td>\u2717 Incompatible<\/td>\n<td>Surface dissolution within hours<\/td>\n<\/tr>\n<tr>\n<td>\u0424\u0442\u043e\u0440\u0438\u0441\u0442\u043e\u0432\u043e\u0434\u043e\u0440\u043e\u0434\u043d\u0430\u044f \u043a\u0438\u0441\u043b\u043e\u0442\u0430<\/td>\n<td>HF (\u043b\u044e\u0431\u0430\u044f \u043a\u043e\u043d\u0446\u0435\u043d\u0442\u0440\u0430\u0446\u0438\u044f)<\/td>\n<td>\u2717 Incompatible<\/td>\n<td>Immediate irreversible etching<\/td>\n<\/tr>\n<tr>\n<td>Hot concentrated H\u2083PO\u2084<\/td>\n<td>&gt; 85%, &gt; 100 \u00b0C<\/td>\n<td>\u2717 Incompatible<\/td>\n<td>Thermal acceleration of SiO\u2082 attack<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<p><img decoding=\"async\" src=\"https:\/\/toquartz.com\/wp-content\/uploads\/2026\/02\/Matched-UV-Vis-Quartz-Cuvette-for-Pathlength-Calibration-and-Instrument-Verification.webp\" alt=\"Matched UV Vis Quartz Cuvette for Pathlength Calibration and Instrument Verification\" title=\"Matched UV Vis Quartz Cuvette for Pathlength Calibration and Instrument Verification\" \/><\/p>\n<h2>Why Glass Cuvettes Fall Short in UV-Vis Measurements Below 320 nm<\/h2>\n<p>Glass cuvettes remain ubiquitous in teaching laboratories and visible-range colorimetry, yet their spectroscopic limitations in the ultraviolet region are severe enough to render them scientifically unsuitable for a large proportion of analytical applications.<\/p>\n<h3>The Chemical Composition of Borosilicate and Soda-Lime Glass<\/h3>\n<p>Commercial laboratory glass cuvettes are manufactured from either borosilicate glass or soda-lime glass \u2014 two multicomponent silicate compositions that include substantial proportions of non-silica network formers and modifiers.<\/p>\n<p><strong>\u0411\u043e\u0440\u043e\u0441\u0438\u043b\u0438\u043a\u0430\u0442\u043d\u043e\u0435 \u0441\u0442\u0435\u043a\u043b\u043e<\/strong> (exemplified by Schott DURAN and Corning Pyrex) contains approximately <strong>81% SiO\u2082, 13% B\u2082O\u2083, 4% Na\u2082O, and 2% Al\u2082O\u2083<\/strong> by weight. Boron trioxide (B\u2082O\u2083) is incorporated to reduce the thermal expansion coefficient, improving thermal shock resistance, but boron-oxygen structural units introduce electronic transitions in the UV range absent from pure SiO\u2082. <strong>\u0421\u0442\u0430\u043a\u0430\u043d \u0441 \u0441\u043e\u0434\u043e\u0432\u043e\u0439<\/strong> contains typically <strong>72% SiO\u2082, 14% Na\u2082O, 9% CaO, and 5% MgO<\/strong> \u2014 a composition optimized for workability and cost rather than optical performance. The network modifier oxides (Na\u2082O, CaO, MgO) disrupt the Si-O network, creating non-bridging oxygen sites that form UV-absorbing defect centers.<\/p>\n<p>Trace metallic impurities in both glass types \u2014 <strong>particularly Fe\u00b2\u207a and Fe\u00b3\u207a ions present at concentrations of 50\u2013200 ppm in standard optical glass<\/strong> \u2014 generate intense UV absorption bands. Fe\u00b3\u207a produces absorption bands near 225 nm and 320 nm through <a href=\"https:\/\/chem.libretexts.org\/Courses\/East_Tennessee_State_University\/CHEM_4110%3A_Advanced_Inorganic_Chemistry\/08%3A_Coordination_Chemistry_-_Spectroscopy\/8.04%3A_Ligand_Field_Transitions\">ligand-field d-d transitions<\/a><sup id=\"fnref1:3\"><a href=\"#fn:3\" class=\"footnote-ref\">3<\/a><\/sup> and charge-transfer transitions, while Fe\u00b2\u207a contributes absorption near 200 nm. Even at sub-100 ppm concentrations across a 10 mm pathlength, these iron absorption bands produce absorbance contributions of 0.1\u20130.5 AU at 280 nm \u2014 magnitudes that overwhelm the signals of dilute biological samples.<\/p>\n<h3>The UV Absorption Cutoff of Glass and Its Spectroscopic Consequences<\/h3>\n<p>The ultraviolet absorption cutoff of a cuvette material is conventionally defined as the wavelength at which the material's intrinsic absorbance equals <strong>1.0 AU<\/strong> for a 10 mm pathlength \u2014 the point at which only 10% of incident radiation is transmitted and signal-to-noise ratio has degraded to a level that renders quantitative measurement unreliable.<\/p>\n<p>For borosilicate glass, this cutoff wavelength falls between <strong>290 and 320 nm<\/strong> depending on specific glass composition and iron content. For soda-lime glass, the cutoff is typically <strong>320\u2013350 nm<\/strong>. These cutoffs mean that borosilicate glass cuvettes are unusable for measurements at 280 nm (protein quantification by aromatic absorbance), 260 nm (nucleic acid quantification), 254 nm (UV sterilization monitoring), and 214\u2013220 nm (peptide bond absorbance and low-wavelength protein quantification). When a glass cuvette is used for a 280 nm protein assay, the glass itself contributes an absorbance of approximately <strong>0.3\u20130.8 AU<\/strong> that varies between individual cuvettes of nominally identical specification \u2014 a batch-variable systematic error that cannot be corrected by a single blank measurement.<\/p>\n<p><strong>The spectroscopic consequences cascade<\/strong>: baseline drift caused by temperature-dependent glass absorbance shifts, apparent absorption peaks at wavelengths corresponding to glass absorption edges (which can be misattributed to sample chromophores), and a collapsed linear dynamic range that forces all quantification into the upper, nonlinear portion of the Beer-Lambert curve.<\/p>\n<h3>Autofluorescence and Scattering Artifacts in Glass at UV Wavelengths<\/h3>\n<p>Beyond direct absorption, glass cuvettes generate secondary optical artifacts in the UV range that further compromise measurement accuracy.<\/p>\n<p><strong>Glass autofluorescence<\/strong> \u2014 spontaneous emission of visible radiation following UV excitation \u2014 arises from electronic transitions within structural defect centers and organic contaminants incorporated during glass manufacturing. When borosilicate glass is irradiated at 280 nm, it emits broadband fluorescence peaking near <strong>400\u2013450 nm<\/strong>, with quantum yields that vary between glass batches. In a standard single-beam UV-Vis spectrophotometer, this fluorescence contributes to the detected signal at wavelengths where the monochromator passband overlaps with the emission spectrum, generating an apparent reduction in sample absorbance \u2014 an artifact that scales nonlinearly with excitation intensity and is absent from blank measurements made with solvent alone in a quartz cuvette.<\/p>\n<p>Microscopic inclusions in glass \u2014 trapped gas bubbles, unmixed melt regions, and crystallite precipitates \u2014 act as <strong>Mie scattering centers<\/strong> for UV radiation. Mie scattering from spherical particles with diameters comparable to the wavelength of measurement (100\u2013300 nm for UV radiation) generates a wavelength-dependent background that rises steeply toward shorter wavelengths, mimicking the absorption profile of colloidal particles. In practice, a glass cuvette used for measurements at 220 nm may exhibit an apparent absorbance contribution from scattering that exceeds <strong>0.5 AU<\/strong> \u2014 larger than the genuine sample absorbance for many dilute biological samples.<\/p>\n<hr \/>\n<p><img decoding=\"async\" src=\"https:\/\/toquartz.com\/wp-content\/uploads\/2026\/02\/Polished-Fused-Silica-UV-Vis-Quartz-Cuvette.webp\" alt=\"Polished Fused Silica UV Vis Quartz Cuvette\" title=\"Polished Fused Silica UV Vis Quartz Cuvette\" \/><\/p>\n<h2>Transmission Performance Compared across Quartz Glass Plastic and Sapphire Cuvettes<\/h2>\n<p>Selecting the appropriate cuvette material requires a systematic comparison across all four material classes available to laboratory spectroscopists \u2014 fused silica quartz, borosilicate glass, polymethylmethacrylate (PMMA), and sapphire \u2014 evaluated against the specific demands of UV-Vis measurements.<\/p>\n<p><strong>Fused silica quartz<\/strong> represents the broadest practical transmission window, the highest chemical compatibility, and the best optical surface stability of the four materials, at a correspondingly higher unit fabrication cost. Its transmission from 170 nm to 2,700 nm with &lt; 0.01 AU baseline absorbance at 260 nm makes it the reference material against which all others are benchmarked.<\/p>\n<p><strong>\u0411\u043e\u0440\u043e\u0441\u0438\u043b\u0438\u043a\u0430\u0442\u043d\u043e\u0435 \u0441\u0442\u0435\u043a\u043b\u043e<\/strong> achieves comparable transmission to quartz above 320 nm and in the full visible range (400\u2013800 nm), making it suitable \u2014 and cost-effective \u2014 for colorimetric assays, enzyme kinetics monitored at visible wavelengths, and any measurement that does not require UV access below 320 nm. Its UV cutoff near 290\u2013320 nm and susceptibility to autofluorescence under UV irradiation make it inappropriate for the near-UV region.<\/p>\n<p><strong>PMMA and polystyrene plastic<\/strong> cuvettes are single-use, disposable formats with UV cutoff wavelengths of <strong>300\u2013320 nm for PMMA<\/strong> \u0438 <strong>340\u2013360 nm for polystyrene<\/strong> \u2014 limitations that restrict them to visible-range colorimetry. Their principal advantages are price and convenience: they eliminate cross-contamination concerns in clinical and high-throughput environments where disposable protocols are mandated. Organic solvents dissolve or craze plastic cuvettes immediately, and their non-optical-grade surfaces exhibit substantial scatter. <strong>\u0421\u0430\u043f\u0444\u0438\u0440 (Al\u2082O\u2083)<\/strong> cuvettes transmit from approximately <strong>145 nm to 5,500 nm<\/strong> with exceptional chemical resistance and mechanical hardness (Mohs 9), making them technically superior to fused silica for vacuum UV applications below 160 nm. However, sapphire's birefringence \u2014 arising from its trigonal crystal structure \u2014 complicates polarimetric measurements, and its fabrication difficulty restricts its use to specialized research applications.<\/p>\n<h4>Cuvette Material Transmission and Compatibility Comparison<\/h4>\n<table>\n<thead>\n<tr>\n<th>\u041d\u0435\u0434\u0432\u0438\u0436\u0438\u043c\u043e\u0441\u0442\u044c<\/th>\n<th>Fused Silica Quartz<\/th>\n<th>\u0411\u043e\u0440\u043e\u0441\u0438\u043b\u0438\u043a\u0430\u0442\u043d\u043e\u0435 \u0441\u0442\u0435\u043a\u043b\u043e<\/th>\n<th>\u041f\u041c\u041c\u0410 \u041f\u043b\u0430\u0441\u0442\u0438\u043a<\/th>\n<th>\u0421\u0430\u043f\u0444\u0438\u0440<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u0414\u0438\u0430\u043f\u0430\u0437\u043e\u043d \u043f\u0440\u043e\u043f\u0443\u0441\u043a\u0430\u043d\u0438\u044f (\u043d\u043c)<\/td>\n<td>170\u20132 700<\/td>\n<td>320\u20132,500<\/td>\n<td>300\u2013900<\/td>\n<td>145\u20135,500<\/td>\n<\/tr>\n<tr>\n<td>UV Cutoff at 1.0 AU \/ 10 mm (nm)<\/td>\n<td>&lt; 175<\/td>\n<td>290\u2013320<\/td>\n<td>300\u2013320<\/td>\n<td>&lt; 150<\/td>\n<\/tr>\n<tr>\n<td>Usable below 260 nm<\/td>\n<td>\u2713 Yes<\/td>\n<td>\u2717 No<\/td>\n<td>\u2717 No<\/td>\n<td>\u2713 Yes<\/td>\n<\/tr>\n<tr>\n<td>\u0423\u0441\u0442\u043e\u0439\u0447\u0438\u0432\u043e\u0441\u0442\u044c \u043a \u043e\u0440\u0433\u0430\u043d\u0438\u0447\u0435\u0441\u043a\u0438\u043c \u0440\u0430\u0441\u0442\u0432\u043e\u0440\u0438\u0442\u0435\u043b\u044f\u043c<\/td>\n<td>\u041f\u0440\u0435\u0432\u043e\u0441\u0445\u043e\u0434\u043d\u043e<\/td>\n<td>\u0425\u043e\u0440\u043e\u0448\u043e<\/td>\n<td>\u0411\u0435\u0434\u043d\u044b\u0439<\/td>\n<td>\u041f\u0440\u0435\u0432\u043e\u0441\u0445\u043e\u0434\u043d\u043e<\/td>\n<\/tr>\n<tr>\n<td>\u0421\u043e\u043f\u0440\u043e\u0442\u0438\u0432\u043b\u0435\u043d\u0438\u0435 \u0412\u0427<\/td>\n<td>\u2717 No<\/td>\n<td>\u2717 No<\/td>\n<td>\u2713 Yes<\/td>\n<td>\u2713 Yes<\/td>\n<\/tr>\n<tr>\n<td>Autofluorescence under UV<\/td>\n<td>\u041d\u0435\u0437\u043d\u0430\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0439<\/td>\n<td>\u0417\u043d\u0430\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0439<\/td>\n<td>\u0423\u043c\u0435\u0440\u0435\u043d\u043d\u044b\u0439<\/td>\n<td>\u041d\u0435\u0437\u043d\u0430\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0439<\/td>\n<\/tr>\n<tr>\n<td>Surface Hardness (Mohs)<\/td>\n<td>7<\/td>\n<td>6-7<\/td>\n<td>3<\/td>\n<td>9<\/td>\n<\/tr>\n<tr>\n<td>\u041c\u043d\u043e\u0433\u043e\u0440\u0430\u0437\u043e\u0432\u044b\u0435<\/td>\n<td>\u2713 Yes<\/td>\n<td>\u2713 Yes<\/td>\n<td>\u2717 No<\/td>\n<td>\u2713 Yes<\/td>\n<\/tr>\n<tr>\n<td>\u0414\u0432\u0443\u043b\u0443\u0447\u0435\u043f\u0440\u0435\u043b\u043e\u043c\u043b\u0435\u043d\u0438\u0435<\/td>\n<td>\u041d\u0435\u0442<\/td>\n<td>\u041d\u0435\u0442<\/td>\n<td>\u041d\u0435\u0442<\/td>\n<td>\u041f\u0440\u0438\u0441\u0443\u0442\u0441\u0442\u0432\u0443\u0435\u0442<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h2>Common Measurement Errors Traced Back to Cuvette Material or Condition<\/h2>\n<p>Even when the correct cuvette material has been selected, measurement errors attributable to cuvette condition \u2014 scratches, residual contamination, misorientation, and trapped bubbles \u2014 represent a persistent source of data quality problems in UV-Vis spectroscopy.<\/p>\n<ul>\n<li>\n<p><strong>Baseline drift and non-zero blank absorbance<\/strong> are the most frequently encountered cuvette-related artifacts. When a quartz cuvette that has accumulated surface contamination is used for blank measurement, the recorded baseline incorporates the contaminant absorbance as zero, causing all subsequent sample measurements to underreport true absorbance by the same amount. A protein film on a quartz cuvette optical surface can contribute <strong>0.05\u20130.2 AU of apparent absorbance at 280 nm<\/strong> \u2014 an error sufficient to misestimate protein concentration by 10\u201350% in a standard Bradford or direct UV assay. By contrast, temperature-induced baseline drift arises from the sample rather than the cuvette: the refractive index of aqueous solutions changes by approximately <strong>\u22120.0001 per \u00b0C<\/strong>, shifting the Fresnel reflection losses at cuvette interfaces and producing a slow absorbance drift that distinguishes itself by its reversibility upon temperature stabilization.<\/p>\n<\/li>\n<li>\n<p><strong>Anomalously elevated absorbance readings<\/strong> that do not correspond to known sample concentrations often originate from scratch-induced scatter on the cuvette optical surface rather than elevated sample absorption. A single scratch across the beam cross-section can increase apparent absorbance by <strong>0.05\u20130.5 AU<\/strong>, depending on scratch depth and width, with the scatter contribution rising steeply at shorter wavelengths. Differentiating scratch scatter from genuine sample absorption requires measuring the apparently anomalous cuvette against a clean reference cuvette using the same blank solution; scratch scatter will remain as a persistent baseline offset whereas genuine sample absorption varies with sample concentration.<\/p>\n<\/li>\n<li>\n<p><strong>Poor measurement reproducibility<\/strong> \u2014 coefficient of variation exceeding 1\u20132% across replicate measurements of identical samples \u2014 frequently traces to inconsistent cuvette insertion orientation. Most cuvettes are not perfectly square: wall thickness variations of <strong>\u00b10,01-0,05 \u043c\u043c<\/strong> between opposing faces alter the effective pathlength depending on which face is presented to the beam. Establishing a consistent insertion orientation (marked with a laboratory pen or by alignment with a manufacturer's orientation mark) typically reduces orientation-related absorbance variability to below 0.3%.<\/p>\n<\/li>\n<li>\n<p><strong>Bubble artifacts<\/strong> produce sudden, large absorbance spikes \u2014 often exceeding 1.0 AU \u2014 at otherwise well-behaved wavelengths. A bubble spanning even a fraction of the beam cross-section reflects virtually all incident radiation away from the detector, simulating near-complete sample absorption. Bubbles originate from dissolved gas coming out of solution when samples are transferred to room temperature from cold storage, from turbulent sample introduction through narrow-bore pipettes, and from residual rinse solvent trapped in poorly dried cuvettes. <strong>Gentle warming to room temperature before measurement, slow sample introduction along the cuvette wall rather than directly into the beam, and thorough drying between uses<\/strong> reliably prevent bubble formation.<\/p>\n<\/li>\n<\/ul>\n<hr \/>\n<h2>Verifying the Integrity of a UV-Vis Quartz Cuvette before Each Measurement Run<\/h2>\n<p>Establishing a brief verification routine before committing a UV-Vis quartz cuvette to quantitative measurements prevents the accumulation of uncorrected systematic errors across experimental datasets.<\/p>\n<ul>\n<li>\n<p><strong>Baseline transmission verification<\/strong> is the most informative pre-measurement check. Filling the cuvette with HPLC-grade water (or the neat solvent to be used in the experiment) and scanning from 190 nm to 350 nm against an air reference reveals both residual contamination (elevated absorbance at characteristic wavelengths) and surface scatter (elevated baseline that rises uniformly toward shorter wavelengths). A clean UV-grade fused silica quartz cuvette filled with HPLC-grade water should exhibit absorbance below <strong>0.05 AU at 200 nm, below 0.02 AU at 230 nm, and below 0.01 AU at 260 nm<\/strong> against an air blank under standard spectrophotometer conditions. Deviations above these thresholds indicate either residual contamination (requiring additional cleaning) or optical surface damage (requiring cuvette replacement).<\/p>\n<\/li>\n<li>\n<p><strong>Visual inspection under oblique illumination<\/strong> complements the spectrophotometric baseline check by revealing scratch patterns, cloudiness, and mechanical chips that cause scatter without necessarily producing distinctive spectral absorption features. Holding the cuvette at approximately 30\u00b0 to a fluorescent tube or fiber-optic light source and examining the optical faces in transmitted light reveals scratches as bright linear streaks; cloudiness appears as diffuse glow within the glass body; mechanical chips appear as sharp-edged bright regions at the cuvette corners or edges. Any cuvette exhibiting scratches within the <strong>central 80% of the optical face<\/strong> \u2014 the region traversed by the spectrophotometer beam \u2014 should be removed from service for quantitative measurements.<\/p>\n<\/li>\n<li>\n<p><strong>Matched-pair verification<\/strong> is required when dual-beam spectrophotometers are used with separate sample and reference cuvettes. Filling both cuvettes with identical blank solution and measuring the absorbance of one against the other across 200\u2013400 nm quantifies their photometric equivalence. A matched pair should exhibit absorbance differences below <strong>0.005 AU across the full wavelength range<\/strong>; pairs exceeding <strong>0.5% transmittance difference at any wavelength within the measurement range<\/strong> should be re-matched or replaced, as the mismatch introduces a wavelength-dependent baseline error that cannot be zeroed out by a single blank measurement.<\/p>\n<\/li>\n<li>\n<p><strong>Replacement criteria<\/strong> for UV-Vis quartz cuvettes are determined by optical performance rather than chronological age or number of uses. A cuvette that passes the baseline transmission test and visual inspection continues to deliver reliable measurements regardless of how long it has been in service. Conversely, a cuvette that fails the baseline test despite thorough cleaning \u2014 exhibiting persistent elevated absorbance above <strong>0.05 AU at 260 nm in HPLC-grade solvent<\/strong> \u2014 has sustained permanent optical surface degradation and should be retired from quantitative UV-Vis work.<\/p>\n<\/li>\n<\/ul>\n<hr \/>\n<h2>\u0417\u0430\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435<\/h2>\n<p>Material selection in UV-Vis cuvettes is a decision with direct consequences for data integrity across the full spectral range. Fused silica quartz stands apart from glass, plastic, and most competing materials because its molecular structure \u2014 a continuous SiO\u2082 network with an electronic bandgap of 8.9 eV \u2014 transmits from 170 nm to 2,700 nm without absorption, autofluorescence, or surface degradation in the presence of acids and organic solvents. Glass cuvettes fail below 320 nm due to transition metal impurities, structural defects, and multicomponent oxide compositions that introduce UV absorption, baseline drift, and fluorescence artifacts. Proper cuvette selection, matched to pathlength, geometry, and cleaning requirements, is not peripheral to UV-Vis spectroscopy \u2014 it is the physical foundation upon which every quantitative result rests.<\/p>\n<hr \/>\n<h2>\u0427\u0410\u0421\u0422\u041e \u0417\u0410\u0414\u0410\u0412\u0410\u0415\u041c\u042b\u0415 \u0412\u041e\u041f\u0420\u041e\u0421\u042b<\/h2>\n<p><strong>Can a glass cuvette be used for any UV-Vis measurements?<\/strong><br \/>\nGlass cuvettes are usable for measurements conducted entirely above 320 nm \u2014 visible-range colorimetry, enzyme kinetics assays monitored at 400\u2013800 nm, and absorbance-based turbidity measurements. They are not suitable for any measurement requiring wavelength access below 320 nm, including protein quantification at 280 nm, nucleic acid quantification at 260 nm, or any assay dependent on aromatic or peptide bond absorbance in the near-UV region.<\/p>\n<p><strong>What pathlength quartz cuvette is standard for most UV-Vis applications?<\/strong><br \/>\nThe 10 mm pathlength quartz cuvette is the universal standard because it provides a practical absorbance working range of approximately 0.05\u20131.5 AU for sample concentrations typical of most biological and chemical analyses, corresponds directly to the pathlength assumed in tabulated molar attenuation coefficient values (which are conventionally reported in units of L mol\u207b\u00b9 cm\u207b\u00b9, where 1 cm = 10 mm), and is compatible with the optical geometry of virtually all commercial bench-top spectrophotometers.<\/p>\n<p><strong>How often should a quartz cuvette be replaced?<\/strong><br \/>\nReplacement frequency is determined by optical performance, not calendar time. A quartz cuvette that passes a baseline transmission test \u2014 exhibiting less than 0.05 AU at 260 nm in HPLC-grade solvent \u2014 and shows no scratches within the central optical face area may remain in service indefinitely. Replacement is indicated when persistent elevated baseline absorbance above this threshold survives thorough cleaning, confirming irreversible surface damage.<\/p>\n<p><strong>Is there any cuvette material that outperforms quartz for UV-Vis work?<\/strong><br \/>\nSapphire (Al\u2082O\u2083) exhibits a broader transmission window than fused silica, extending from approximately 145 nm in the vacuum UV to 5,500 nm in the mid-infrared. For laboratory UV-Vis applications confined to 190\u2013800 nm, however, fused silica quartz performs equivalently to sapphire while avoiding sapphire's inherent birefringence \u2014 a property that complicates polarimetric and circular dichroism measurements \u2014 making UV-grade fused silica quartz the practical optimum for the vast majority of UV-Vis spectroscopic applications.<\/p>\n<hr \/>\n<p>\u0421\u0441\u044b\u043b\u043a\u0438:<\/p>\n<div class=\"footnotes\">\n<hr \/>\n<ol>\n<li id=\"fn:1\">\n<p>Circular dichroism spectroscopy measures the differential absorption of left- and right-handed circularly polarized light by chiral molecules, requiring optically homogeneous cuvette faces to preserve polarization state integrity.&#160;<a href=\"#fnref1:1\" rev=\"footnote\" class=\"footnote-backref\">&#8617;<\/a><\/p>\n<\/li>\n<li id=\"fn:2\">\n<p>Silicon tetrafluoride is the volatile gaseous product of the reaction between hydrofluoric acid and silicon dioxide, and its formation drives the irreversible etching of fused silica surfaces upon HF exposure.&#160;<a href=\"#fnref1:2\" rev=\"footnote\" class=\"footnote-backref\">&#8617;<\/a><\/p>\n<\/li>\n<li id=\"fn:3\">\n<p>Ligand-field transitions are electronic excitations within transition metal ions caused by the splitting of d-orbital energy levels in the electrostatic field of surrounding ligands, producing characteristic UV and visible absorption bands in metal-containing glasses.&#160;<a href=\"#fnref1:3\" rev=\"footnote\" class=\"footnote-backref\">&#8617;<\/a><\/p>\n<\/li>\n<\/ol>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Choosing the wrong cuvette material corrupts spectroscopic data silently \u2014 and most researchers only discover the error after results become [&hellip;]<\/p>","protected":false},"author":2,"featured_media":11363,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[10],"tags":[75],"class_list":["post-11361","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blogs","tag-quartz-cuvette"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.4 (Yoast SEO v27.4) - 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