Colorimeters are used to quantify the concentration of a solute in a solution by measuring the absorbance of a particular wavelength or color of light by the solution.

A spectrocolorimeter is a form of spectrophotometer that can calculate tristimulus values, or the the light intensity of primary color values in a sample.

A: Cast iron base attached to a sloping cast iron upright supporting the reader, prisms, sample cups, plungers, and a mechanism for raising and lowering the sample cups; two metal knobs control the height of the sample…

General view of technician James Geary using a Klett-Summerson Photoelectric Colorimeter to obtain a determination of iodine at a Dow Chemical Company laboratory. Designed in the 1930's by two Cornell University Medical…

Klett Bio Colorimeter, a device used in colorimetry to measure the absorbance of particular wavelengths of light by a specific solution. Colorimeters are commonly used to determine the concentration of a known solute in…

General view of a colorimeter used to analyze nitrogen dioxide at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory located in Washington, D.C. With regards to chemistry, colorimeters are used to…

An informational pamphlet concerned with the K & E Color Analyzer, a spectrophotometer developed by Keuffel & Esser, Co. (K & E). K & E was a drafting instrument and supplies company founded in 1867, making it the first…

Joseph Williams Lovibond (1833-1918) was a British brewer who developed the first practical colorimeter. After discovering that coloration was a good index for assessing the quality of his beer, he sought an accurate…

Colorimeters are used to quantify the concentration of a solute in a solution by measuring the absorbance of a particular wavelength or color of light by the solution.

Colorimeters are used to quantify the concentration of a solute in a solution by measuring the absorbance of a particular wavelength or color of light by the solution.

A: Duboscq type colorimeter, biological, with electric illuminator. Hollow black cast iron base attached to a sloping cast iron upright supporting the reader, prisms, and sample cups; reader detaches with two metal…

Cast iron base attached to a sloping cast iron upright supporting the reader, prisms, sample cups, and a mechanism for raising and lowering the sample cups on a focusing rail; metal knobs on each side control the height…