spectrophotometry The measurement of the intensity of different colors (wavelengths) present in a beam of light, normally using a prism or diffraction grating, and a photoelectric cell. It is used for color comparison and in chemical analysis. See also spectrophotometer. Related categories • SPECTRA AND SPECTROSCOPY • ANALYTICAL CHEMISTRY Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) |