A cuvette is a type of laboratory equipment, usually a small square tube, sealed at one end, made of plastic, glass, or optical grade quartz and designed to hold samples for spectroscopic experiments. The best cuvettes are as clear as possible, without impurities that might affect a spectroscopic reading. Like a test tube, a cuvette may be open to the atmosphere on top or have a glass or Teflon cap to seal it shut. Parafilm can also be used to seal it.

Some cuvettes will be clear only on opposite sides, so that they pass a single beam of light through that pair of sides; often the unclear sides have ridges or are rough to allow easy handling. Cuvettes to be used in fluorescence spectroscopy are clear on all four sides. Some cuvettes, known as tandem cuvettes, have a glass barrier that extends 2/3 up inside, so that measurements can be taken with two solutions separated, and again when they are mixed.

Our cuvettes are specially packaged in dust resistant protective foam trays to reach you scratch free. Manufactured from polystyrene and formulated for superior clarity and transmission. Each cuvette is packed in its own individual compartment to assure scratch-free optical surfaces. Fits most spectrophotometers, including Beckman, Perkin-Elmer, Gilford, Hitachi, Varian, Shimadzu and more.