Quartz 10mm Ultra-Micro Cuvette, 50 µl, Standard 80, Two-Way Light, PTFE Cap, 1pc/ea, C102CE26

Description

Applications

Why Ultra-Micro?

A raised quartz platform elevates 50 µl of sample precisely into the spectrophotometer beam at Z = 8.5 mm, saving 99% 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.