Colorimeter (chemistry)

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Colorimeter

An Auto colorimeter
Uses	to test the concentration of a substance in a solution by measuring its absorbance of a specific wavelength of light

A colorimeter is a device used in colorimetry that measures the absorbance of particular wavelengths of light by a specific solution.^[1][2] It is commonly used to determine the concentration of a known solute in a given solution by the application of the Beer–Lambert law, which states that the concentration of a solute is proportional to the absorbance.