we have suggested the determination of different indolic metabolites of tryptophan : oh 5 trptophan ( 5 htp ) , oh 5 tryptamine ( 5 ht ) , oh 5 indolyl-acetic acid ( 5 hia ) by column chromatography on cationic coupled with spectrofluorimetry after amplification obtained with o-phtaldehyde .
C0041249
tryptophan
C0000578
5 htp