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Stable Optical Transmission Cell Frosted Quartz Micro Cuvette with Lids for UV-VIS Laboratory Applications -TOQUARTZ®
Features of Frosted Quartz Micro Cuvette with Lids
TOQUARTZ® frosted quartz micro cuvettes combine precision engineering with high-quality materials to deliver exceptional performance for the most demanding spectroscopic applications.
Enhanced UV-VIS Transmission Range
Covers a broad spectral range from 200nm to 2500nm with no UV absorption peaks. Ensures accurate detection of nucleic acids, proteins, and chemical compounds.
Frosted Sidewalls for Light Control
Minimizes stray light interference and internal reflection during measurement. Improves signal-to-noise ratio in low-concentration sample analysis.
Micro-Volume Sample Compatibility
Supports volumes from 350μl to 1750μl for limited or precious samples. Ideal for DNA, RNA, and protein quantification in research labs.
PTFE Lid for Sample Integrity
Provides a secure, chemical-resistant seal to prevent evaporation or contamination. Maintains sample stability during extended analysis or transport.
- SiO2 Purity ≥99.98%, up to 99.995%
- Chemical Resistance to Harsh Reagents
- Thermal Stability up to 600°C
Technical Specifications & Dimensions of Frosted Quartz Micro Cuvette with Lids
Technical Specifications
Physical Properties
| Parameter | Specification |
| Material | High-purity quartz (≥99.98% SiO2) |
| Lid Material | PTFE (Polytetrafluoroethylene) |
| Density | 2.2 g/cm³ |
| Thermal Expansion Coefficient | 5.5×10-7/℃ |
| Surface Finish | Frosted sidewalls, polished optical faces |
Chemical Properties
| Parameter | Specification |
| Acid Resistance | Excellent (except HF) |
| Alkali Resistance | Excellent |
| Solvent Compatibility | Compatible with most organic solvents |
| Biocompatibility | Inert, non-reactive with biological samples |
Optical Properties
| Parameter | Specification |
| Transmission Range | 200-2500nm |
| UV Cutoff | <190nm |
| Refractive Index | 1.46 at 589.3nm |
Size Chart
| Model | Description | Wavelength | Path Length | Volume | Thermal Stability | Outline Dimension |
| AT-BSM-4027 | 350μl Frosted Quartz Micro Cuvette with Lid | 200nm-2500nm | 10mm | 350μl | 600℃ | 12.5×12.5x45mm |
| Model | Description | Wavelength | Path Length | Volume | Thermal Stability | Outline Dimension |
| AT-BSM-4034 | 700μl Frosted Quartz Micro Cuvette with Lid | 200nm-2500nm | 10mm | 700μl | 600℃ | 12.5×12.5x45mm |
| Model | Description | Wavelength | Path Length | Volume | Thermal Stability | Outline Dimension |
| AT-BSM-4031 | 1050μl Frosted Quartz Micro Cuvette with Lid | 200nm-2500nm | 10mm | 1050μl | 600℃ | 12.5×12.5x45mm |
| Model | Description | Wavelength | Path Length | Volume | Thermal Stability | Outline Dimension |
| AT-BSM-4030 | 1400μl Frosted Quartz Micro Cuvette with Lid | 200nm-2500nm | 10mm | 1400μl | 600℃ | 12.5×12.5x45mm |
| Model | Description | Wavelength | Path Length | Volume | Thermal Stability | Outline Dimension |
| AT-BSM-4031-1 | 1750μl Frosted Quartz Micro Cuvette with Lid | 200nm-2500nm | 10mm | 1750μl | 600℃ | 12.5×12.5x45mm |
TOQUARTZ® Solving Critical Challenges in Spectroscopy Applications with Frosted Quartz Micro Cuvette with Lid
Trace-Level Fluorescence Detection in Environmental Pollutant Monitoring Using Frosted Quartz Micro Cuvette with Lid
Key Advantages
-
Reduced Sidewall Reflection by 38.6%
Frosted surface diffuses lateral light, lowering background signal in ppb-level fluorescence. -
Improved Signal-to-Noise Ratio by 2.9×
Enables detection of PAHs and heavy metals at <0.5 ppb with stable baselines. -
Minimized False Positives in Micro-Volume Tests
Suppresses optical noise in 350μl samples, reducing false detection events by 31%.
TOQUARTZ® solution
An environmental testing lab in Poland struggled with inconsistent fluorescence readings when detecting benzo[a]pyrene at 0.3 ppb. Using standard clear cuvettes, background noise caused 22% false positive rates. After switching to TOQUARTZ® frosted quartz micro cuvettes, false positives dropped to 6%, and detection repeatability improved by 2.7× across 5 replicates.
Protein Aggregation Studies in Biopharmaceutical Formulation Using Frosted Quartz Micro Cuvette with Lid
Key Advantages
-
Scatter Reduction at 280nm by 41%
Frosted walls eliminate wall-induced light scatter that mimics protein aggregation. -
Evaporation Loss Reduced by 85%
PTFE lid maintains sample volume during 60-minute thermal ramping cycles. -
Improved A280 Consistency in 1ml Samples
Delivers <1.2% absorbance deviation across 10 replicates in micro-volume assays.
TOQUARTZ® solution
A biopharma R&D team in South Korea observed inconsistent A280 readings during thermal stress testing of monoclonal antibodies. Using clear cuvettes, aggregation was falsely indicated in 3 out of 10 samples. After adopting TOQUARTZ® frosted quartz micro cuvettes, false aggregation signals were eliminated, and absorbance deviation dropped from 3.8% to 0.9%, enabling reliable formulation screening.
DNA Quantification in Forensic Micro-Sample Analysis Using Frosted Quartz Micro Cuvette with Lid
Key Advantages
-
Noise Suppression in 260nm UV Readings
Frosted walls reduce optical interference, enhancing clarity in degraded DNA samples. -
Sample Volume Retention >98%
PTFE lid prevents evaporation during 30-minute quantification protocols. -
Detection Sensitivity Improved by 2.4×
Enables accurate quantification from as little as 5ng/μl DNA in 350μl volumes.
TOQUARTZ® solution
A forensic lab in Ontario, Canada, faced challenges quantifying degraded DNA from 15-year-old evidence. Standard cuvettes introduced noise that masked low-concentration signals. After switching to TOQUARTZ® frosted quartz micro cuvettes, signal clarity improved significantly, enabling successful quantification at 5ng/μl with 96% confidence, and reducing sample reprocessing by 40%.
TOQUARTZ® Customization Options for Frosted Quartz Micro Cuvette
with Lids
Volume Customization
- Micro volumes down to 150μl
- Custom fill volumes between standard offerings
- Special internal chamber designs
Dimensional Modifications
- Non-standard path lengths
- Custom height requirements
- Special Z-dimension requirements
Specialized Lid Options
- Screw-cap lid variations
- Alternative materials to PTFE
- Septa-compatible designs for sampling
Usage Guide of Frosted Quartz Micro Cuvette with Lids
Proper Handling
- Always handle cuvettes by the frosted sides to avoid fingerprints on optical windows
- Place on clean, soft surfaces when not in use
- Avoid touching optical faces with bare hands
- Use cuvette holders designed for 12.5mm × 12.5mm dimensions
Sample Loading
- Fill to appropriate volume using micropipettes
- Avoid scratching inner walls with pipette tips
- Ensure no air bubbles are present in the light path
- Secure PTFE lid firmly but avoid over-tightening
Cleaning Procedure
- Rinse immediately after use with appropriate solvent (typically deionized water)
- For persistent residues, soak in 5% HCl or Hellmanex™ solution
- Rinse thoroughly with ultrapure water
- Dry with filtered compressed air or nitrogen
- Avoid abrasive materials that could scratch optical surfaces
Storage Recommendations
- Store in original packaging or dedicated cuvette holders
- Keep in dust-free environment
- Store with PTFE lid slightly loosened to prevent sticking
- Avoid direct contact with other cuvettes or hard surfaces
Need Technical Assistance?
Get expert advice on material selection, dimensions, and specifications.
Why Partner with TOQUARTZ
Direct Factory Advantage
As a direct manufacturer, we can cut out the numerous intermediate links.
Engineering Expertise
Technical team guides clients from material selection to design optimization, translating specs into deliverables.
Flexible Manufacturing
Handling standard & custom orders via small-batch expertise and prototyping rigor to meet urgent deadlines.
Quality
Assurance
Pre-shipment 3-step validation:
1. dimensional accuracy,
2. material purity ,
3. performance thresholds
Global Supply Chain
Reliable global logistics to industrial hubs (DE/US/JP/KR priority) with trackable milestones.
Releted Products
As a specialized manufacturer with direct factory capabilities, TOQUARTZ provides both standard and custom quartz solutions with engineering support throughout the specification and implementation process.
FAQ
Q: Why does the Frosted Quartz Micro Cuvette with Lid have frosted sidewalls instead of fully transparent walls?
A: The frosted sidewalls in the Frosted Quartz Micro Cuvette with Lid are designed to suppress stray light and reduce internal reflections, which is critical for improving signal-to-noise ratio in micro-volume UV-VIS and fluorescence measurements.
Q: Will the frosted surface of the Frosted Quartz Micro Cuvette with Lid affect light transmission accuracy?
A: No. The optical windows remain fully polished for accurate light transmission. The frosted areas are only on the sidewalls, outside the light path, and do not interfere with measurement accuracy.
Q: How does the Frosted Quartz Micro Cuvette with Lid prevent sample evaporation during thermal cycling?
A: The PTFE lid maintains a tight seal under temperature changes, reducing evaporation by over 85% during thermal ramping in protein or DNA stability studies.
Q: Does the frosted wall design of the Frosted Quartz Micro Cuvette with Lid affect baseline correction in UV-VIS analysis?
A: No. The frosted walls are outside the optical path and do not interfere with baseline correction. In fact, they help stabilize the baseline by reducing stray light interference.
Q: Can I use the Frosted Quartz Micro Cuvette with Lid for degraded or low-concentration DNA samples?
A: Yes. The frosted design enhances signal clarity at 260nm, and the lid prevents evaporation, making the Frosted Quartz Micro Cuvette with Lid ideal for forensic or trace DNA quantification.
Contact our engineering team for technical consultation and pricing. We’ll help you select the optimal specifications for your application requirements.