[GABA fluophore formation due to ninhydrin reaction in the octanolic milieu. Spectrofluorometric investigation. 1. (author's transl)].

As a result of the reaction of ninhydrin with gamma-aminobutyric acid and glutamic acid in the octanolic milieu, a fluorescent product, presumably a copper-II-chelat-complex, was formed. This appears analogous to the fluorescence histochemical procedure. the reaction product displays the following spectrofluorometric properties: excitation peak at lambda = 375 nm and emission plaximum at lambda = 445 nm. Spectrofluorometric estimations during performing various steps of the reaction were indicative of possibilities of the improvement of the fluorescence histochemical GABA demonstration.