Fluorometric procedures for dye tracing

Abstract

Absorption. The physical assimilation of dye molecules by organic or inorganic solids such as bank, bed, suspended material, or plantlife. Also, the assimilation and conversion to thermal energy of irradiating energy (light) by most substances, including all that are fluorescent. Absorption spectrum. For a given substance, the characteristic relationship of the intensity of absorbed energy (light) to the wavelength of the incident energy. Related to, but not the same as, excitation spectrum.