Quartz 10mm Cuvette With Stopper For Ultra-Micro Volume, 200 µl, Standard 80, Two-Way Light, Stopper, 1pc/ea, C102CE28
Description
The C102CE28 is a precision quartz ultra-micro cuvette with 10 mm path length and two-way light optical windows, designed for UV-Vis spectrophotometry (190–2500 nm). The two-way light configuration transmits the beam through two opposing polished optical faces, delivering clean baseline performance for absorbance measurements. A raised quartz platform inside the cuvette body elevates just 200 µl of sample to the beam center at Z = 15 mm, saving 94% compared to a standard 3.5 ml cell. Fabricated using Standard 80 (>80% transmittance). Includes a PTFE stopper for chemical-resistant sealing and evaporation prevention.
| Technical Specifications | |||
|---|---|---|---|
| Material | Quartz (Fused Silica) | SKU | C102CE28 |
| Path Length | 10 mm | Minimum Volume | 200 µl |
| Optical Windows | 2 (Two-Way Light) | Z Dimension | 15 mm |
| Fabrication | Standard 80 | Transmittance | >80% |
| Wavelength | 190–2500 nm | Exterior Dimensions | 12.5 × 12.5 × 45 mm |
| Cap | PTFE Stopper | Package | 1 pc/ea |
Why PTFE Stopper?
The PTFE stopper provides a secure, chemical-resistant seal that prevents solvent evaporation and protects samples from atmospheric contamination. PTFE (polytetrafluoroethylene) is inert to virtually all laboratory chemicals, making this stopper suitable for use with aqueous buffers, mild organic solvents, and air-sensitive samples. The stopper enables safe inversion for gentle mixing without leaks, and maintains stable sample concentrations during extended kinetic measurements where even minor evaporation would compromise results.
Applications
Why Ultra-Micro?
A raised quartz platform elevates 200 µl of sample precisely into the spectrophotometer beam at Z = 15 mm, saving 94% compared to a standard 3.5 ml cell while maintaining the full 10 mm optical path (Beer–Lambert law: A = εlc). This is essential for precious biological samples, limited column fractions, or expensive synthetic compounds. Important: the Z dimension must match your instrument’s beam center height — verify before ordering.
Black-Wall Design Benefits
This cuvette features a black-wall (dark-wall) exterior on the two non-optical faces. The opaque coating absorbs stray ambient light and eliminates fluorescence interference from scattered excitation photons bouncing off internal walls. Benefits include: reduced stray-light artifacts at low absorbance readings, improved signal-to-noise in fluorescence measurements, cleaner baselines in the deep-UV region (<230 nm) where scattered light is most problematic, and sharper spectral resolution in high-sensitivity absorbance work. If your application does not require lateral light transmission (excitation/emission at 90°), the black-wall two-way configuration delivers measurably better optical performance than an all-clear four-way cuvette.
Why Standard 80 Construction?
Standard 80 is the premium fabrication method: the cuvette is integrally fused as a single piece with no adhesive or joints. This eliminates solvent attack points and enables operation up to 1200 °C — far exceeding sintered (600 °C) or glue-assembled (200 °C) alternatives. The one-piece construction delivers a path length variation of just ±0.02 mm, ensuring the highest level of reproducibility. With transmittance >80%, Standard 80 is the gold standard for demanding research applications.
Additional information
| Weight | 30 g |
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