“…In a study of protein conformation with 2-p-toluidinylnaphthalene-6-sulfonate as a fluorescent probe, the emission intensity was seen to increase dramatically when chymotrypsinogen Fluorescence decay times of several proteins and other biochemical molecules have been measured in the nanosecond range (116). Serum proteins in chromatographic column effluents can be collected automatically by a device which uses their native fluorescence (658); they can also be quantitated in electrophoresis patterns by fluorescent staining (599).…”