Plastic Cuvettes

A cuvette is a piece of laboratory equipment that is intended to hold samples for spectroscopic analysis. While cuvettes can be made of various materials, plastic cuvettes have the advantage of being less expensive and disposable and are often used in fast spectroscopic assays. They eliminate the sample carry-over risk of reusable cuvettes, and the risk of scratching or breaking expensive quartz. Plastic cuvettes are used in the visible range for colorimetric assays and the UV range for DNA, RNA, and protein analysis. Semi-micro size cuvettes are for sample volumes between 1.5mL and 3.0mL, macro cuvettes for samples larger than 2.5mL. and ultra-micro sized cuvettes may be used with sample volumes as small as 70µL. Consider the sample type and the compatibility with your spectrophotometers and photometers when selecting the appropriate cuvette.