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Leak-Proof Micro Volume Sealing Quartz Micro Cuvette with Screw Cap for Laboratory Spectroscopy -TOQUARTZ®
Features of Quartz Micro Cuvette with Screw Cap
TOQUARTZ® Quartz Micro Cuvettes with Screw Caps are precision-crafted spectroscopy vessels made from high-purity quartz. Designed for applications requiring small sample volumes and high optical performance across UV, visible, and near-infrared spectra.
Secure Screw Cap Sealing
PTFE screw caps provide hermetic sealing to prevent sample evaporation, contamination, and leakage during storage or measurement.
Micro-Volume Efficiency
Designed for small sample volumes (350μl-1750μl) without compromising measurement accuracy, conserving valuable reagents and specimens.
Broad Spectral Transmission
Excellent optical transparency across UV, visible, and NIR ranges (200-2500nm) without absorption peaks, enabling versatile analytical applications.
Chemical Resistance
Resistant to most acids, bases, and organic solvents (except hydrofluoric acid), making these cuvettes suitable for a wide range of chemical analyses.
- SiO2 Purity ≥99.98%, up to 99.995%
- 10mm Standard Path Length
- Customization Available
Technical Specifications & Dimensions of Quartz Micro Cuvette with
Screw Cap
Technical Specifications
Physical Properties
| Parameter | Specification |
| Material | High-purity quartz |
| Density | 2.2 g/cm³ |
| Thermal Expansion Coefficient | 5.5×10-7/℃ |
| Surface Finish | Polished |
| Thermal Conductivity | 1.3 W/(m·K) |
Chemical Properties
| Parameter | Specification |
| SiO2 Content | ≥99.98%, up to 99.995% |
| Acid Resistance | Excellent (except HF) |
| Alkali Resistance | Excellent |
| Solvent Resistance | Excellent |
| Water Absorption | Nil |
| Impurities | < 5 ppm |
Optical Properties
| Parameter | Specification |
| Transmission Range | 200-2500nm |
| Transmittance (UV) | >80% |
| Refractive Index | 1.46 at 589.3nm |
| Dispersion | Abbe Value = 67.8 |
| Optical Flatness | λ/4 |
Size Chart
| Model | Description | Wavelength | Path Length | Volume | Transmittance | Outline Dimension |
| AT-BSM-4005 | 350μl, 400μl,600μl Quartz Micro Cuvette with Screw Cap | 200nm-2500nm | 10mm | 350μl/400μl/600μl | >80% (Paired Testing) | 12.5×12.5x45mm |
| Model | Description | Wavelength | Path Length | Volume | Transmittance | Outline Dimension |
| AT-BSM-4013 | Quartz Micro Cuvette with Screw Cap | 200nm-2500nm | 10mm | 350μl/700μl/1050μl/1400μl/1750μl | >80% (Paired Testing) | 12.5×12.5x53mm |
| Model | Description | Wavelength | Path Length | Volume | Transmittance | Outline Dimension |
| AT-BSM-4004 | 700μl Quartz Micro Cuvette with Screw Cap | 200nm-2500nm | 10mm | 700μl | >80% (Paired Testing) | 12.5×12.5x50mm |
| Model | Description | Wavelength | Path Length | Volume | Transmittance | Outline Dimension |
| AT-BSM-4038 | 1750μl Quartz Micro Cuvette with Screw Cap | 200nm-2500nm | 5mm/10mm | 1750μl | >80% (Paired Testing) | 12.5×12.5x75mm |
TOQUARTZ® Solving Challenges in Precision Spectroscopy with Quartz Micro Cuvette with Screw Cap
Quartz Micro Cuvette with Screw Cap in Clinical Diagnostics for Neonatal Screening
Key Advantages
-
Secure sealing for <500μl heel-prick samples
Prevents evaporation in 96% of cases during 4-hour batch processing cycles. -
Compatible with manual pipetting workflows
12.5mm square design fits standard racks used in non-automated hospital labs. -
Maintains sample integrity for 24h storage
PTFE screw cap prevents contamination in delayed UV-VIS metabolic assays.
TOQUARTZ® solution
A neonatal screening center in Osaka, Japan, reported 21.7% sample loss due to evaporation in open cuvettes during overnight metabolic panel batching. After switching to TOQUARTZ® Quartz Micro Cuvette with Screw Cap, sample retention improved to 99.2%, enabling accurate UV-VIS analysis of <500μl blood samples and reducing retesting costs by over ¥180,000/month.
Quartz Micro Cuvette with Screw Cap in Agricultural Pesticide Residue Testing
Key Advantages
-
Retains 98% solvent volume after 48h
Screw cap prevents acetonitrile/methanol evaporation during transport. -
Leak-proof under 1.2 bar pressure
Ensures safe field-to-lab transfer of volatile analytes in sealed cuvettes. -
Maintains UV absorbance stability ±2%
Preserves analyte concentration for accurate pesticide quantification.
TOQUARTZ® solution
A Polish agricultural lab testing pesticide residues in strawberries observed 14% deviation in UV absorbance due to solvent loss in open cuvettes. TOQUARTZ® Quartz Micro Cuvette with Screw Cap maintained solvent volume within ±2% over 48 hours, improving test reproducibility and reducing false negatives by 17.3% across 600+ samples/month.
Quartz Micro Cuvette with Screw Cap in Veterinary Molecular Diagnostics
Key Advantages
-
Preserves RNA integrity for 72h at 4°C
Screw cap prevents degradation of nucleic acids during rural-to-urban transport. -
Supports 350μl–700μl serum volumes
Ideal for livestock diagnostics where sample quantity is limited. -
Prevents cross-contamination in pooled testing
Individually sealed cuvettes reduce false positives in multi-animal workflows.
TOQUARTZ® solution
A livestock disease surveillance program in South Korea faced 18% PCR failure due to RNA degradation during transport from rural clinics. By adopting TOQUARTZ® Quartz Micro Cuvette with Screw Cap, RNA integrity was preserved for 72 hours at 4°C, reducing invalid test rates to 2.1% and saving over ₩3.2 million/month in retesting costs.
TOQUARTZ® Customization Options for Quartz Micro Cuvette with
Screw Cap
Dimensional Customization
*Tolerances down to ±0.1mm standard, with ±0.05mm available for select specifications
- Custom path lengths
- Special internal volumes
- Modified external dimensions
- Precision tolerance requirements
Cap & Sealing Options
*Enhanced sealing options available for volatile or hazardous samples
- Alternative cap materials
- Special thread sizes/types
- Modified sealing systems
- Specialized septum caps
Custom Design Process
- Requirements Discussion: TOQUARTZ® technical team discusses your specific needs, application challenges, and measurement parameters.
- Design Proposal: We provide technical drawings and specifications based on your requirements for review and approval.
- Prototype Development: For new designs, we can produce prototype samples for testing and validation in your application.
- Production: Upon approval, we manufacture your custom cuvettes with strict quality control measures to ensure specifications are met.
- Quality Assurance: Each custom cuvette undergoes dimensional verification and optical testing to ensure it meets your specifications.
- Expedited Delivery: We prioritize quick turnaround times for custom orders, with typical delivery within 2-4 weeks depending on complexity.
Usage Guide of Quartz Micro Cuvette with Screw Cap
Handling & Preparation
- Always handle cuvettes wearing powder-free gloves to prevent fingerprints and contamination on optical windows.
- Before first use, clean cuvettes with appropriate solvents (e.g., dilute laboratory detergent, followed by thorough rinsing with deionized water and spectroscopic-grade solvent).
- Inspect optical windows for cleanliness and scratches before measurements.
- Orient the cuvette correctly in the spectrophotometer with clear optical windows facing the light path.
Sample Loading & Measurement
- Ensure sample volume is sufficient to cover the entire light path but avoid overfilling.
- For micro-volume cuvettes, refer to the specific volume requirements in the model specifications.
- When using with screw cap, ensure the cap is tightened securely but not excessively to prevent leakage or damage.
- For volatile samples, prepare and cap immediately before measurement to prevent concentration changes.
Cleaning & Maintenance
- Clean immediately after use to prevent sample residue buildup and contamination.
- For routine cleaning, rinse with appropriate solvent followed by spectroscopic-grade solvent or deionized water.
- For stubborn residues, soak in dilute acid (except HF) or laboratory detergent solution, then rinse thoroughly.
- Air dry or use a dust-free compressed air source. Avoid wiping optical windows with tissues that may scratch the surface.
Storage & Precautions
- Store clean, dry cuvettes in their original packaging or a dust-free container.
- Avoid mechanical shocks or thermal stress that may cause cracks or distortion.
- For long-term sample storage in cuvettes, ensure chemical compatibility and check caps periodically for secure sealing.
- NEVER use hydrofluoric acid (HF) with quartz cuvettes as it will dissolve the quartz material.
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: Can the Quartz Micro Cuvette with Screw Cap be used for volatile solvents like acetonitrile or methanol?
A: Yes, the PTFE screw cap provides a tight seal that minimizes solvent evaporation, making the Quartz Micro Cuvette with Screw Cap suitable for volatile organic compounds.
Q: How does the screw cap design of the Quartz Micro Cuvette with Screw Cap prevent sample contamination?
A: The threaded PTFE cap forms a hermetic seal, preventing airborne particles or cross-contamination during storage, transport, or delayed analysis.
Q: How long can a sample be stored in the Quartz Micro Cuvette with Screw Cap without evaporation?
A: Under controlled conditions (4°C, sealed), samples can be stored for up to 72 hours with <2% volume loss, depending on solvent volatility.
Q: How does the Quartz Micro Cuvette with Screw Cap perform in high-throughput hospital labs?
A: Its secure sealing and micro-volume compatibility reduce sample loss and contamination, making it ideal for batch processing in neonatal or clinical diagnostics.
Q: What makes the Quartz Micro Cuvette with Screw Cap more suitable than open-top cuvettes for micro-volume assays?
A: Its screw cap prevents evaporation and contamination, while the micro-volume chamber ensures accurate readings with limited sample input, especially in critical assays like neonatal screening or veterinary diagnostics.
Contact our engineering team for technical consultation and pricing. We’ll help you select the optimal specifications for your application requirements.