title: Urinary homogentisic acid: determination by thin-layer chromatography.
mesh_terms: D000474:Alkaptonuria / Q000652:urine; D001205:Ascorbic Acid / Q000652:urine; D002855:Chromatography, Thin Layer; D004295:Dihydroxyphenylalanine; D004355:Drug Stability; D005841:Gentisates / Q000652:urine; D006713:Homogentisic Acid / Q000302:isolation & purification / Q000652:urine*; D006801:Humans; D008297:Male; D008722:Methods; D008875:Middle Aged; D010648:Phenylacetates / Q000652:urine; D013053:Spectrophotometry; D013997:Time Factors
chemical_list: D005841:Gentisates; D010648:Phenylacetates; D004295:Dihydroxyphenylalanine; D006713:Homogentisic Acid; D001205:Ascorbic Acid