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- Precision Black Quartz Cuvette...
Precision Black Quartz Cuvette UV JGS1 Micro Sample Cell for UV-Vis Spectroscopy -TOQUARTZ®
Specially designed with black walls to minimize stray light interference, enhancing measurement accuracy for fluorescence detection, trace analysis, and DNA/RNA quantification applications.
Features of Black Quartz Cuvette Cell
TOQUARTZ® black UV quartz cuvettes feature specialized construction with black walls and transparent windows to minimize stray light interference in sensitive optical measurements. The high-purity quartz material offers exceptional performance across the UV-visible spectrum.
Optical Performance
-
Transmission range:
200-2500nm with no absorption peaks -
Black walls minimize stray light:
by up to 95% compared to standard cuvettes -
Transparent windows with >80% transmission in UV range
-
Polished optical surfaces with λ/4 flatness
Material Properties
-
High-purity quartz (+99.98% SiO₂)
-
Chemical resistance to acids, bases, and organic solvents
-
Thermal stability up to 1100°C
-
Low thermal expansion coefficient (5.5×10⁻⁷ /°C)
- Wide Spectral Range (200-2500nm)
- Thermal Stability (1100°C+)
- Custom Design Support
Technical Specifications & Dimensions of Black Quartz Cuvette
Technical Specifications of Black Quartz Glass Cuvette
| Parameter | Standard Specification | Custom Options |
| Material | High-purity quartz (99.98%+ SiO₂) | – |
| Path Length | 10mm | 1mm, 2mm, 5mm, 20mm, 30mm, 50mm, 100mm |
| Outer Dimensions | 12.5 × 12.5 × 45mm | Custom per requirement |
| Surface Finish | Optical polishing on windows | Custom polishing levels |
| Thermal Resistance | Up to 1100°C | – |
| Chemical Resistance | Resistant to most acids, bases, and solvents | – |
| Lid Options | PTFE stoppers, screw caps | Custom lid designs |
Size of of Black Quartz Cuvette UV JGS1 Micro Sample Cell
| Model | Description | Wavelength | Path Length | Volume | Temperature | Outline Dimension |
| AT-BSM-053 | Customizable Micro Black Quartz Cuvette | 200nm-2500nm | 10mm | 100μl | 100℃ | 12.5×12.5x8mm |
| Model | Description | Wavelength | Path Length | Volume | Temperature | Outline Dimension |
| AT-BSM-047 | 100μl Black Quartz Cuvette for Protein Determination | 200nm-2500nm | 10mm | 100μl | 100℃ | 12.5×12.5x25mm |
| Model | Description | Wavelength | Path Length | Volume | Temperature | Outline Dimension |
| AT-BSM-013 | 350μl Black Quartz Cuvette JGS1 Micro Sample Cell with Lid | 200nm-2500nm | 10mm | 350μl | 100℃ | 12.5×12.5x45mm |
| Model | Description | Wavelength | Path Length | Volume | Temperature | Outline Dimension |
| AT-BSM-005 | 1.05ml Black Quartz Cuvette JGS1 Micro Sample Cell with Lid | 200nm-2500nm | 10mm | 1.05ml | 100℃ | 12.5×12.5x45mm |
| Model | Description | Wavelength | Path Length | Volume | Temperature | Outline Dimension |
| AT-BSM-049 | 1.4ml Black Quartz Cuvette JGS1 Micro Sample Cell with Lid | 200nm-2500nm | 10mm | 1.4ml | 100℃ | 12.5×12.5x45mm |
| Model | Description | Wavelength | Path Length | Volume | Temperature | Outline Dimension |
| AT-BSM-050 | 1.75ml Black Quartz Cuvette JGS1 Micro Sample Cell with Lid | 200nm-2500nm | 10mm | 1.75ml | 100℃ | 12.5×12.5x45mm |
TOQUARTZ® Solving Critical Challenges with Black UV Quartz Cuvettes
Black Quartz Glass Cuvette Cells for Fluorescence Detection
Key Advantages
-
0.3% baseline noise deviation at 10⁻⁹ M fluorophore concentration
→ Enables ultra-low signal detection with minimal background fluctuation. -
98.7% stray light suppression in 250–400nm excitation range
→ Reduces sidewall reflection interference in high-sensitivity fluorescence assays. -
0.0005 AU optical window absorbance at 260nm
→ Ensures negligible self-absorption for weak quantum yield molecules.
TOQUARTZ® solution
A biotech lab in Germany reported inconsistent fluorescence readings at 10⁻⁹ M due to cuvette wall reflection.
TOQUARTZ® black UV quartz cuvettes, with 98.7% stray light suppression, stabilized their signal baseline within ±0.3%, enabling reliable detection of low-emission fluorophores. This improvement was directly attributed to our optical wall coating precision, not just material purity.
Black Quartz Cuvette for Precision DNA/RNA Quantification
Key Advantages
-
±0.1mm path length tolerance ensures 260/280 ratio deviation <1.5%
→ Minimizes optical path variability in nucleic acid purity assessment. -
1.4ml micro-volume design with 10mm path length
→ Enables accurate quantification with limited sample input. -
0.0003 AU baseline drift over 30-minute UV exposure
→ Maintains measurement stability during extended kinetic assays.
TOQUARTZ® solution
A genomics lab in the US faced inconsistent 260/280 ratios due to cuvette dimensional variance.
TOQUARTZ® black UV quartz cuvettes, with ±0.1mm path length control, reduced their inter-sample ratio deviation from 3.2% to 1.1%. This dimensional precision—not just stray light control—was key to improving nucleic acid purity assessments.
Black UV Quartz Cuvette for Instrument Manufacturing Integration
Key Advantages
-
12.5×12.5×45mm outer dimension with ±0.1mm repeatability
→ Ensures seamless fit in automated spectrophotometer carousels. -
0.02° optical window parallelism deviation
→ Prevents beam misalignment in dual-beam systems. -
100% batch-to-batch dimensional conformity (QC data, 2023 Q4)
→ Eliminates recalibration needs during OEM integration.
TOQUARTZ® solution
A Japanese instrument OEM experienced 7% alignment failure in auto-sampler due to cuvette dimensional drift.
TOQUARTZ® black UV quartz cuvettes, with 0.02° window parallelism and ±0.1mm tolerance, enabled full mechanical compatibility, reducing calibration downtime by 80%. The solution stemmed from our precision machining, not just delivery speed.
Customization Services for TOQUARTZ® Black Quartz Cuvette
Dimensional Customization
• Custom path lengths (1-100mm)
• Custom inner volumes
• Special outer dimensions
Ideal for instrument manufacturers requiring precise fit with existing equipment.
Design
Customization
• Flow-through designs
• Custom lid/cap configurations
• Specialized window arrangements
• Multiple optical path options
Perfect for specialized applications requiring unique sample handling capabilities.
Surface
Treatments
• Enhanced optical polishing
• Anti-reflection coatings
• Black wall optimization
• Custom markings/graduations
• Multiple optical path options
Supports applications requiring maximum optical performance and stray light reduction.
TOQUARTZ® Customization Process
Requirements Discussion
TOQUARTZ® engineers consult with you to understand your application requirements, technical specifications, and performance objectives.
Design & Proposal
We develop a custom design proposal with detailed specifications, timeline, and pricing for your review and approval.
Prototype Development
For new designs, we produce a small batch of prototype cuvettes for testing and validation in your application.
Production & Quality Control
After approval, we proceed with full production including comprehensive QC testing before delivery. Our standard lead time for custom black UV quartz cuvettes is 2-3 weeks.
Usage Guide of Black Fused Quartz Cuvette
Handling & Preparation
- Always handle cuvettes using gloves to prevent fingerprints and contamination on optical surfaces.
- Inspect optical windows for cleanliness before use. Hold against light source to check for smudges or particulates.
- Fill cuvettes to appropriate volume (typically 2-3ml for standard 10mm path cuvettes) to ensure proper beam passage through sample.
- For UV applications, use UV-transparent solvents to prepare samples and reference solutions.
- Always cap cuvettes when using volatile solvents to prevent concentration changes during measurement.
Cleaning & Maintenance
- Clean immediately after use - rinse with appropriate solvent first, then with high-purity water.
- For stubborn residues, soak in 5% HCl solution, followed by thorough rinsing with deionized water.
- Dry with clean, compressed air or nitrogen. Never use paper tissues on optical surfaces.
- For optical window cleaning, use spectroscopic-grade solvents like acetone, methanol, or ethanol.
- Store in original container or protective case in a dust-free environment.
Correct Alignment of Black UV Quartz Cuvettes in Spectroscopic Instruments
- Identify the transparent optical windows - these are the two clear sides perpendicular to the black walls.
- Insert cuvette with optical windows facing the light path of the instrument (transparent sides toward light source and detector).
- Black walls should be perpendicular to the incident light to absorb stray radiation.
- Mark one side of the cuvette to maintain consistent orientation between measurements.
Need a Engineering Support for Custom Black UV Quartz Cuvette Solution?
We accept custom designs via sketches, CAD files, or even photographs of existing parts.
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: What is a black UV quartz cuvette?
A: A black UV quartz cuvette is a specialized optical cell made from high-purity quartz with black-colored walls and transparent windows. The black walls absorb stray light to minimize interference and background signal, while the transparent windows allow the analytical light beam to pass through the sample for spectroscopic measurements.
Q: Why use a black UV quartz cuvette instead of standard transparent cuvettes?
A: Black UV quartz cuvettes significantly reduce stray light and internal reflections, providing superior performance for applications requiring high sensitivity and accuracy, such as fluorescence spectroscopy and low-concentration DNA/RNA quantification. They deliver improved signal-to-noise ratio and more consistent results for trace analysis applications.
Q: What is the wavelength range for black UV quartz cuvettes?
A: TOQUARTZ® black UV quartz cuvettes transmit light from 120nm in the deep UV through 4500nm in the infrared region. The optical windows have excellent transmission characteristics with no absorption peaks throughout this range, making them suitable for both UV and visible spectroscopy applications.
Q: How do I clean black UV quartz cuvettes?
A: Clean black UV quartz cuvettes by first rinsing with the same solvent used for your samples, followed by spectroscopic-grade acetone or methanol. For thorough cleaning, soak in 5% HCl solution, then rinse extensively with deionized water. Dry with compressed air or nitrogen, never with paper tissues which can scratch the optical surfaces.
Q: What path lengths are available for black UV quartz cuvettes?
A: Standard black UV quartz cuvettes are available in 10mm path length, which is the industry standard. However, we offer custom path lengths ranging from 1mm for high-concentration samples to 100mm for extremely dilute solutions. Common alternatives include 2mm, 5mm, 20mm, and 50mm path lengths.
Q: What is the chemical compatibility of black UV quartz cuvettes?
A: Black UV quartz cuvettes are resistant to most chemicals including acids, bases, organic solvents, and salt solutions. They should not be used with hydrofluoric acid (HF) or hot concentrated phosphoric acid, which can etch quartz surfaces. The high chemical resistance makes them suitable for a wide range of analytical applications.
Contact our engineering team for technical consultation and pricing. We’ll help you select the optimal specifications for your application requirements.