Quartz 30mm Screw-Cap Sample Cell, 20ml, Sintered 83, Two-Way Light, Screw Cap, 1pc/ea, C302TS1
10%
USD$285.00 USD$257.00
Quartz 30 mm screw-cap sample cell, 20 ml, Sintered 83 (>83% transmittance). Two-way Light. PTFE-Lined Screw Cap. 190–2500 nm. 1pc/ea. SKU: C302TS1.
Description
The C302TS1 is a quartz screw-top cuvette with 30 mm path length and two-way light optical configuration — two opposite vertical faces are polished to optical grade, forming the standard transmission geometry for UV-Vis absorbance measurements. With a 20 ml internal volume (30 × 30 × 48 mm chamber), the cell is compatible with most commercial spectrophotometers. Fabricated using Sintered 83 (>83% transmittance) — quartz panels are thermally fused at approximately 600 °C, producing joints free of organic adhesive. The PTFE-lined screw cap threads securely onto the cuvette, providing a leak-proof seal that prevents evaporation of volatile solvents and protects air-sensitive samples. The threaded closure allows safe inversion mixing and sample transport without spills.
| Technical Specifications — Screw-Top Cuvette | |||
|---|---|---|---|
| Material | Quartz (Fused Silica) | SKU | C302TS1 |
| Path Length | 30 mm | Internal Volume | 20 ml |
| Optical Windows | 2 (Two-way Light) | Fabrication | Sintered 83 |
| Transmittance | >83% | Wavelength | 190–2500 nm |
| Exterior Dimensions | 34 × 32.5 × 50 mm | Interior Dimensions | 30 × 30 × 43 mm |
| Closure | PTFE-Lined Screw Cap | Package | 1pc/ea |
Spectroscopy Applications
◆ UV-Vis Absorbance Spectroscopy — quantitative concentration, kinetics, Beer–Lambert studies
◆ DNA / RNA Quantification — nucleic-acid purity checks at 260/280 nm
◆ Protein Assays — Bradford, BCA, Lowry, and direct A280 measurements
◆ Enzyme Kinetics — real-time substrate conversion and inhibition studies
◆ Water Quality & Environmental — COD, nitrate, phosphate, heavy-metal colorimetric tests
◆ Pharmaceutical QC — dissolution testing, drug concentration, stability monitoring
◆ Chemical Reaction Monitoring — reaction progress tracking via absorbance changes
◆ Teaching & Student Labs — durable quartz cells for undergraduate spectroscopy courses
Why Two-Way Light?
Two-way light cuvettes have two opposite polished faces that form the standard transmission path for absorbance measurements. The remaining two faces are frosted (ground), which blocks stray light from reaching the detector at oblique angles and improves measurement accuracy. This is the most common configuration for UV-Vis spectrophotometry.
Why a PTFE-Lined Screw Cap?
The internal-thread screw cap design provides the most secure closure available for standard cuvettes. Unlike friction-fit caps or stoppers, the threaded connection resists accidental opening during sample handling, vortex mixing, or transport. The PTFE liner ensures chemical inertness and a tight seal against vapour loss — critical when working with volatile organic solvents, concentrated acids, or extended kinetic measurements. The screw cap can be repeatedly removed and replaced without degradation.
Why Sintered 83?
Sintered 83 cuvettes undergo high-temperature fusion at approximately 600 °C, creating adhesive-free joints with >83% transmittance. This fabrication is compatible with strong acids, bases, and most organic solvents (excluding HF and aggressive organics such as toluene and acetone) — making it a robust choice for diverse chemical environments.
Usage Tips
- Rinse with a compatible solvent (e.g., ethanol or the measurement solvent) before first use to remove any residual particles.
- Do not use abrasive materials or brushes on the polished optical faces — wipe gently with lens tissue.
- Compatible with strong acids, bases, and most organic solvents. Avoid HF and aggressive organics (toluene, acetone).
- Store in the original protective case to prevent scratches on the optical windows.
- For baseline correction, fill with your reference solvent, cap the cuvette, and run a blank before sample measurements.
Custom Orders
Need a non-standard path length, volume, window configuration, or closure type? We manufacture quartz cuvettes to your exact specifications. Request a custom quote.
Need a non-standard path length, volume, window configuration, or closure type? We manufacture quartz cuvettes to your exact specifications. Request a custom quote.
Disclaimer: Specifications are nominal values measured under standard laboratory conditions. Actual transmittance may vary slightly with wavelength and sample conditions. Images are representative; minor cosmetic variations between production batches are normal and do not affect optical performance.
Additional information
| Weight | 100 g |
|---|---|
| Dimensions | 3.4 × 3.25 × 5.0 mm |
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