Cuvette spectrophotometry measures absorbance by passing light through a liquid sample contained in a cuvette with a fixed optical path length. The most common standard path length is 10 mm, which provides a consistent basis for absorbance calculations using the Beer-Lambert law. It relies on placing a liquid sample into a cuvette with a defined optical path length, most commonly 10 mm, to determine concentration and absorbance. Cuvettes are designed to hold samples for spectroscopic measurement, where a beam of light is passed through the sample within the cuvette to measure the absorbance, transmittance, fluorescence intensity, fluorescence polarization, or fluorescence lifetime of the sample. This measurement is done. In the lexicon of the modern laboratory, the term “cuvette” (Here View HINOTEK Cuvette) is often defined simply as a small, rectangular vessel used to hold liquid samples for analysis. While technically correct, this description understates its true significance. Most cuvettes for absorption measurements have two parallel transparent sides so the spectrophotometer light is able to pass through, though some special tests require only. Cuvettes are a type of vessel necessary for the precise spectral analysis of liquid samples.
