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Automated-Loading Quartz Cuvette with Funnel Top for Fluorescence Assays -TOQUARTZ®
Features of Quartz Cuvette with Funnel Top
TOQUARTZ® Quartz Cuvettes with Funnel Top combine precision optical performance with practical laboratory functionality. These high-quality spectroscopic cells are engineered for researchers and equipment manufacturers requiring reliable sample analysis across multiple wavelengths.
Material Purity
The high-purity optical quartz with SiO₂ content up to 99.995%, ensuring exceptional optical transparency and minimal interference in spectroscopic measurements.
Integrated Funnel Design
The built-in funnel top allows for easy and precise sample loading, reducing spillage and contamination risks.
Optical Clarity
Excellent transmission range from 200nm to 2500nm, covering UV, visible, and near-infrared regions with no absorption peaks.
Chemical Inertness
Highly resistant to acids, bases, salts, and organic solvents, providing reliable performance in diverse chemical environments.

- SiO2 Purity ≥99.98%, up to 99.995%
- Chemical Resistance to Harsh Reagents
- Customization Services Available
Technical Specifications & Dimensions of Quartz Cuvette with Funnel Top
Technical Specifications
Parameter | Specification |
1. Physical Properties | |
Material | High-purity fused quartz |
Purity | ≥99.98%, up to 99.995% SiO₂ |
Density | 2.2 g/cm³ |
Hardness | 5.5-6.5 Mohs |
Breaking Modulus | >350 MPa |
Thermal Expansion | 5.5×10-7/℃ |
2. Chemical Properties | |
Chemical Resistance | Excellent to most acids/bases (except HF) |
Water Absorption | <0.01% |
Solvent Compatibility | Universal |
Sterilization | All standard methods |
3. Optical Properties | |
Transmission Range | 120nm – 4500nm |
Refractive Index | 1.45-1.46 (at 589.3nm) |
UV Cutoff | <170nm |
Optical Homogeneity | Excellent |
Surface Quality | Optically polished |
Fluorescence | Minimal |
Size Chart

Model | Description | Path Length | Volume | Outline Dimension |
AT-BSM-6021 | 3500μl Quartz Cuvette with Funnel Top | 10mm | 3500μl | 12.5×12.5x46mm |
TOQUARTZ® Solutions for Precision Spectroscopy Challenges with Quartz Cuvette with Funnel Top
Quartz Cuvette with Funnel Top in High-Throughput Drug Screening Labs
Key Advantages
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Minimized Loading Time in HTS Pipetting
Funnel top reduces robotic pipetting alignment time by 1.2 seconds per well, saving ~20 minutes per 1,000 samples. -
Reduced Sample Loss with Viscous Compounds
Funnel geometry decreases overflow incidents by 87% when dispensing DMSO-based solutions. -
Improved Volume Consistency Across Wells
Standard deviation in loaded volume reduced from ±4.3μL to ±1.1μL in 96-well fluorescence assays.
TOQUARTZ® solution
A US-based pharmaceutical CRO using a Tecan Fluent HTS system faced 11% assay variability due to pipetting misalignment and overflow with viscous solvents. After switching to TOQUARTZ® funnel cuvettes, sample loading errors dropped by 89%, and daily throughput increased by 16%, enabling 1,200+ compounds/day with consistent fluorescence readouts.
Quartz Cuvette with Funnel Top for Micro-Volume Fluorescence in Genetic Diagnostics
Key Advantages
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Precision Loading of ≤50μL Samples
Funnel inlet diameter of 9mm enables accurate pipetting of 20–50μL DNA/RNA samples with <2% loss. -
Bubble-Free Pipetting for PCR Fluids
Tapered inner wall reduces bubble formation by 92% compared to flat-top cuvettes. -
Preservation of Rare Genetic Material
Sample recovery rate improved from 94.5% to 98.8% in low-volume fluorescence assays.
TOQUARTZ® solution
A German molecular diagnostics lab performing qPCR-based fluorescence detection on 30μL DNA eluates reported 14% sample loss due to bubble formation and misloading. After adopting TOQUARTZ® funnel cuvettes, sample loss dropped to under 2%, and retest rates fell by 78%, saving €6,400/month in reagents and technician time.
Quartz Cuvette with Funnel Top in Biohazardous Fluorescence Assays
Key Advantages
-
Splash-Free Loading in BSL-2/3 Cabinets
Funnel design reduced splash-back incidents by 93% during manual pipetting of infectious samples. -
Glove-Compatible Handling for PPE Users
Wide opening allows accurate pipetting even with 2-layer nitrile gloves under biosafety hoods. -
Leak-Proof Seal for Volatile Traces
Prevents evaporation of ethanol-based dye residues for up to 4 hours at 25°C.
TOQUARTZ® solution
A Korean CDC-affiliated virology lab conducting SARS-CoV-2 fluorescence assays in BSL-3 conditions experienced frequent splash-back during pipetting, leading to 4 contamination events/month. After switching to TOQUARTZ® funnel cuvettes, incidents dropped to zero, reducing decontamination downtime by 75% and increasing daily test capacity by 22%.
TOQUARTZ® Customization Options for Quartz Cuvette with Funnel Top
Custom Dimension Options
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Instrument Fit
Ensure compatibility with non-standard holder geometries. -
Wall Thickness
Adjust for thermal or pressure-specific applications. -
Optical Path
Match analytical needs across different detection systems. -
Volume Control
Optimize internal volume for sample conservation. -
Handling Safety
Improve grip and reduce breakage during operation.
Funnel Opening Customization
-
Opening Diameter
Fit pipette tips or robotic nozzles precisely. -
Funnel Angle
Control flow rate and prevent sample splashing. -
Lip Design
Avoid overflow and improve sample injection accuracy. -
Glove Access
Enable safe handling under biosafety cabinet conditions. -
Anti-Bubble Shape
Reduce air entrapment during micro-volume pipetting.
Custom Development Process
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Requirement Clarity
Translate vague needs into technical specifications. -
Drawing Assistance
Support incomplete or non-standard customer drawings. -
Rapid Feedback
Provide technical validation within 48 working hours. -
Iterative Refinement
Adjust design based on functional testing feedback. -
Cross-Team Sync
Align R&D, procurement, and QA expectations early.
Usage and Care Guidelines
Handling and Loading Samples
- Always wear powder-free gloves when handling cuvettes to prevent fingerprints and contamination.
- Use the funnel top to carefully introduce samples, avoiding rapid pouring that might create bubbles.
- Fill to approximately 3/4 of the cuvette height for optimal measurement results.
- Ensure the optical windows (clear sides) are clean and free from fingerprints before measurement.
Cleaning Procedures
- Rinse immediately after use with appropriate solvents (typically distilled water followed by acetone or ethanol).
- For persistent residues, soak in 10% laboratory-grade detergent solution for 30 minutes.
- Avoid abrasive materials that could scratch optical surfaces.
- For biological samples, a solution of 2% sodium hypochlorite may be used, followed by thorough rinsing.
- Final rinse should always be with high-purity solvent and allowed to air dry in a dust-free environment.
Storage Recommendations
- Store clean, dry cuvettes in their original protective packaging or dedicated cuvette holders.
- Keep in a dust-free cabinet away from potential physical damage.
- Avoid contact with HF (hydrofluoric acid), which can etch quartz surfaces.
- Periodically inspect for chips, cracks, or surface contamination before use.
Temperature Considerations
- Allow cuvettes to gradually reach thermal equilibrium when transitioning between temperature extremes.
- For high-temperature applications, heat and cool at rates not exceeding 5°C per minute to prevent thermal shock.
- When using at elevated temperatures, ensure uniform heating to prevent localized stress.
Enhance Your Spectroscopic Precision with TOQUARTZ® Quartz Funnel Cuvettes
Fast delivery, no minimum order, and expert technical support.
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: How does the funnel top improve pipetting accuracy in fluorescence workflows?
A: The funnel top of the Quartz Cuvette with Funnel Top guides the pipette tip into the center of the cuvette, reducing misalignment. This minimizes sample spillage and ensures consistent volume delivery. It is particularly beneficial when working with viscous or volatile solvents. Accurate pipetting improves reproducibility in fluorescence intensity measurements.
Q: Is the Quartz Cuvette with Funnel Top compatible with automated fluorescence platforms?
A: Yes, the Quartz Cuvette with Funnel Top is designed with automation in mind. Its consistent dimensions and wide funnel opening support robotic pipetting systems. The cuvette can be integrated into fluorescence plate readers or custom holders. This reduces manual handling and increases throughput in high-volume labs.
Q: How does the funnel top reduce air bubble formation in fluorescence assays?
A: The tapered funnel design of the Quartz Cuvette with Funnel Top directs liquid smoothly into the chamber. This reduces turbulence and prevents air entrapment during pipetting. Air bubbles can distort fluorescence readings by scattering light or blocking the optical path. The funnel minimizes this risk, especially in micro-volume applications.
Q: What makes the Quartz Cuvette with Funnel Top suitable for fluorescence assays?
A: The Quartz Cuvette with Funnel Top offers four-sided optical transparency, allowing flexible excitation and emission configurations. Its high-purity quartz ensures minimal background fluorescence and excellent UV transmission. The funnel top design enables precise sample loading without introducing bubbles. This is especially useful in sensitive fluorescence-based quantification.
Q: What customization options are available for the funnel top in fluorescence applications?
A: The funnel top of the Quartz Cuvette with Funnel Top can be tailored in diameter, angle, and lip design. This ensures compatibility with specific pipette tips or robotic arms. Anti-splash and anti-bubble features can also be integrated. Customization improves workflow efficiency and reduces sample handling errors in fluorescence labs.
Contact our engineering team for technical consultation and pricing. We’ll help you select the optimal specifications for your application requirements.