Thomas 4-Piece Spectrophotometer Cell Set, 170 to 2700nm Spectral Range

The Thomas spectrophotometer cell set includes four 3.5mL quartz cuvettes with PTFE lids to measure samples in the 170 to 2700nm spectral range. These clear, quartz, 3.5mL spectrophotometer cuvettes are used to take UV and visible wavelength measurements. The PTFE (polytetrafluoroethylene) lid helps contain samples and prevents spills and evaporation. Each cuvette has a path length of 10mm. This set of four cuvettes includes a box for storage and protection from breakage. The outside dimensions of each cuvette are 46 x 12.5 x 12.5mm (H x W x D). (H is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.)

Cuvettes are specialized test tubes, used in laboratory or field research, to hold samples for optical analysis by instruments such as spectrophotometers, fluorometers, and turbidity meters. Their size or capacity is most often measured in milliliters or microliters. A cuvette may be cylindrical in shape, but square or rectangular cuvettes are used when light refraction must be minimized. A rectangular cuvette may have four clear sides, for use in a fluorometer, or only two clear sides opposite each other, for use in spectrophotometry. The path length of a cuvette, often given in millimeters or centimeters, is a measure of the distance that light travels through a sample in the cuvette. Cuvettes are made of transparent quartz, glass, or plastic. Each material offers different advantages: quartz is best in the ultraviolet light range, glass and plastic in the visible light range, and glass yields more precise results. Cuvettes may come with a cap for containment or a stopper for sealing. Cuvettes are also called cuvets, absorption cells, or sample cells.

Thomas Scientific manufactures instruments, equipment, supplies, and chemicals for laboratory and scientific applications. The company, founded in 1900, is headquartered in Swedesboro, NJ.

What's in the Box?

• Set of four cuvettes
• Storage box