Fluorescent material to absorb electromagnetic radiation by the excitation,the excited atoms or molecules to stimulate the process of re-radiation emission wavelength with excitation wavelength of the radiation the same or different.When the excitation light source to stop the sample after irradiation,and then fired to stop the process immediately,which re-launched as the fluorescent light.
Add:in conjunction with this:In recent years,as colleges and universities Fluorimetry liquid chromatography,capillary electrophoresis for high sensitivity detectors and laser-induced fluorescence analysis in the ultra-high sensitivity analysis of biological macromolecules of widespread concern