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Quartz Micro Cuvette with Black Walls and Black Caps for Laboratory Spectroscopy -TOQUARTZ®
Features of Quartz Micro Cuvette with Black Walls and Black Caps
TOQUARTZ® micro cuvettes are engineered specifically for scientific applications requiring minimal sample volumes and high optical performance. Our black wall design provides significant advantages for fluorescence and sensitive spectroscopic measurements.
Micro Volume Capability
Designed for precious samples with minimal volume requirements, available in 50μl, 100μl, 200μl, and 300μl capacities.
Chemical Resistance
Excellent resistance to acids, bases, and organic solvents, making these cuvettes suitable for a wide range of chemical analyses.
Optical Performance
High-purity quartz (≥99.98% SiO₂, max. up to 99.995%) with excellent transmission range from 200nm to 2500nm, ideal for UV-Vis and fluorescence applications.
- Optimized black walls for Fluorescence
- Thermal stability: Up to 100°C
- Customization available
Technical Specifications & Dimensions of Quartz Micro Cuvette with Black Walls and Black Caps
Technical Specifications
Physical Properties
| Parameter | Specification |
| Material | High-purity quartz (≥99.98% SiO2) |
| Surface Finish | Optical polishing on window surfaces |
| Wall Treatment | Black coating for light isolation |
Chemical Properties
| Parameter | Specification |
| Chemical Resistance | Excellent to most acids, bases, and solvents |
| pH Stability Range | 1-14 |
| Solvent Compatibility | Compatible with most organic solvents |
| Hydrophobicity | Moderate (contact angle ~30°) |
Optical Properties
| Parameter | Specification |
| Transmission Range | 200-2500nm |
| Absorbance Accuracy | ±0.005A |
| Window Flatness | ≤λ/4 |
| Stray Light Reduction | >99% (black walls) |
Size Chart
| Model | Description | Wavelength | Path Length | Volume | Thermal Stability | Outline Dimension |
| AT-BSM-4028 | 50μl Quartz Micro Cuvette with Black Walls and Black Cap | 200nm-2500nm | 10mm | 50μl | 100℃ | 12.5×12.5x45mm |
| Model | Description | Wavelength | Path Length | Volume | Thermal Stability | Outline Dimension |
| AT-BSM-4022 | 50μl Quartz Micro Cuvette with Black Walls and Black Lid | 200nm-2500nm | 10mm | 50μl | 100℃ | 12.5×12.5x45mm |
| Model | Description | Wavelength | Path Length | Volume | Thermal Stability | Outline Dimension |
| AT-BSM-4023 | 100μl Quartz Micro Cuvette with Black Walls and Black Cap | 200nm-2500nm | 10mm | 100μl | 100℃ | 12.5×12.5x45mm |
| Model | Description | Wavelength | Path Length | Volume | Thermal Stability | Outline Dimension |
| AT-BSM-4025 | 200 μlQuartz Micro Cuvette with Black Walls and Black Cap | 200nm-2500nm | 10mm | 200μl | 100℃ | 12.5×12.5x45mm |
| Model | Description | Wavelength | Path Length | Volume | Thermal Stability | Outline Dimension |
| AT-BSM-4024 | 300 μlQuartz Micro Cuvette with Black Walls and Black Cap | 200nm-2500nm | 10mm | 300μl | 100℃ | 12.5×12.5x45mm |
TOQUARTZ® Solving Laboratory Challenges with Black Wall Quartz Micro Cuvettes
Quartz Micro Cuvette with Black Walls for DNA/RNA Quantification
Key Advantages
-
Minimized Sample Volume Loss
Only 50μl sample required vs. 1–3ml in standard cuvettes, reducing nucleic acid waste by over 95%. -
Stray Light Suppression Efficiency
Black walls reduce background interference by 87%, improving fluorescence signal-to-noise ratio. -
Consistent Optical Path Accuracy
10.00mm ±0.05mm path length ensures <2% deviation in nucleic acid concentration readings.
TOQUARTZ® solution
A molecular biology lab in Heidelberg, Germany, reported inconsistent DNA quantification using standard 1ml cuvettes due to sample scarcity and high background noise. After switching to TOQUARTZ® 50μl black wall micro cuvettes, they achieved a 92% reduction in sample usage and a 1.8× improvement in fluorescence signal clarity. This enabled accurate quantification of DNA at concentrations as low as 0.3ng/μl, critical for their low-yield extraction workflows.
Quartz Micro Cuvette with Black Walls for Trace Analysis in Environmental Samples
Key Advantages
-
Enhanced Detection at ppb Levels
Black wall design improves fluorescence detection sensitivity by 1.6× for analytes below 10ppb. -
Reduced Optical Interference
Stray light suppression exceeds 90%, critical for detecting PAHs and heavy metals in complex matrices. -
Low Volume Compatibility
Supports 50–300μl sample volumes, ideal for limited-volume soil and water extracts.
TOQUARTZ® solution
An environmental testing lab in Ontario, Canada, faced challenges detecting trace polycyclic aromatic hydrocarbons (PAHs) in river water due to high background fluorescence. Using TOQUARTZ® 100μl black wall cuvettes, they reduced optical noise by 21% and achieved consistent detection of benzo pyrene at 4.7ppb. This allowed them to meet regulatory reporting thresholds without increasing sample volume or processing time.
Quartz Micro Cuvette with Black Walls for Pharmaceutical Formulation Analysis
Key Advantages
-
API Conservation in Early R&D
Requires only 100μl per test, reducing API consumption by up to 80% during formulation screening. -
Excipient Interference Mitigation
Black walls block lateral light scatter, improving accuracy in complex excipient matrices. -
Precision Path Length Control
±0.05mm tolerance ensures <1.5% deviation in absorbance-based API concentration assays.
TOQUARTZ® solution
A pharmaceutical R&D center in Osaka, Japan, struggled with accurate UV absorbance readings of early-stage API formulations due to excipient interference and limited sample availability. After adopting TOQUARTZ® 100μl black wall cuvettes, they reduced API usage per test from 500μl to 100μl and improved measurement repeatability by 93%. This enabled faster iteration of formulation batches while maintaining QC compliance.
TOQUARTZ® Customization Options for Quartz Micro Cuvette with Black Walls and Black Caps
Custom Dimensions
- Non-standard path lengths
- Specialized volumes
- Custom height or width dimensions
- Special chamber geometries
Special Features
- Screw-cap or snap-lock lid options
- Magnetic stirring compatibility
- Flow-through ports for continuous monitoring
- Temperature control adaptations
Surface Treatments
- Partial black wall configurations
- Anti-reflective coatings
- Hydrophobic surface treatments
- Specialized optical window polishing
Usage Guide of Quartz Micro Cuvette with Black Walls and Black Caps
Proper Handling Procedures
- Always handle cuvettes by the top or opaque surfaces to avoid fingerprints on optical windows.
- Fill cuvettes using micropipettes, taking care not to scratch the interior surfaces.
- For most accurate results, ensure sample fills to the recommended volume mark without air bubbles.
- Always use the provided caps to prevent sample evaporation during measurement.
Cleaning Instructions
- Rinse immediately after use with appropriate solvent compatible with your sample.
- For thorough cleaning, use 2% Hellmanex III solution, followed by thorough rinsing with ultrapure water.
- For stubborn residues, soak in 5% HCl solution for 30 minutes (avoid using HF, which can etch quartz).
- Dry with clean, compressed air or nitrogen gas. Never use paper towels on optical surfaces.
Measurement Best Practices
- Always use the same orientation in the instrument for consistency between measurements.
- For fluorescence measurements, ensure the excitation beam passes through the clear windows, not the black walls.
- Allow temperature-sensitive samples to equilibrate to room temperature before measurement.
- Regularly check for scratches or damage that could affect optical performance.
Storage Recommendations
- Store clean, dry cuvettes in their original protective case or in a dust-free container.
- Keep cuvettes away from abrasive surfaces that could scratch the optical windows.
- Avoid prolonged exposure to strong UV light when not in use.
Need Technical Assistance with Quartz Micro Cuvettes?
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: Will the black walls of the Quartz Micro Cuvette with Black Walls and Black Caps affect UV-Vis transmission?
A: No, the optical windows remain transparent quartz; only the side walls are black-coated, ensuring full UV-Vis transmission (200–2500nm) through the measurement path.
Q: Can the black coating on the Quartz Micro Cuvette with Black Walls and Black Caps degrade over time or with cleaning?
A: The black coating is chemically bonded and resistant to most solvents, but abrasive cleaning or exposure to HF can damage it. Use non-abrasive cleaning methods only.
Q: How does the black cap of the Quartz Micro Cuvette with Black Walls and Black Caps help in fluorescence analysis?
A: The black cap prevents ambient light from entering the cuvette from the top, reducing background noise and improving signal-to-noise ratio in fluorescence detection.
Q: Are the Quartz Micro Cuvette with Black Walls and Black Caps compatible with standard spectrophotometers and fluorometers?
A: Yes, they follow the standard 12.5mm × 12.5mm × 45mm external dimensions and fit most commercial instruments with 10mm path length holders.
Q: Why do some fluorescence readings vary when using the Quartz Micro Cuvette with Black Walls and Black Caps?
A: Variations may result from improper orientation, cap misalignment, or inconsistent sample volume. Always align the optical windows correctly and fill to the recommended volume.
Contact our engineering team for technical consultation and pricing. We’ll help you select the optimal specifications for your application requirements.