title: Determination of L-histidine in nanogram amounts and the question of its occurrence in mast cells.
mesh_terms: D000642:Ammonia-Lyases / Q000302:isolation & purification; D000818:Animals; D002499:Centrifugation, Density Gradient; D002854:Chromatography, Paper; D005470:Fluorometry; D006639:Histidine / Q000032:analysis* / Q000378:metabolism; D006868:Hydrolysis; D007328:Insulin / Q000032:analysis; D008297:Male; D008407:Mast Cells / Q000032:analysis* / Q000378:metabolism; D011551:Pseudomonas fluorescens / Q000201:enzymology; D051381:Rats; D013056:Spectrophotometry, Ultraviolet
chemical_list: D007328:Insulin; D006639:Histidine; D000642:Ammonia-Lyases