The use of a cation-exchange resin in the determination of some basic substances (tyrosine, tyramine, kynurenine, 3-hydroxykynurenine and cystine) in urine.
D001826:Body Fluids; D002412:Cations; D003555:Cystinuria; D006801:Humans; D007475:Ion Exchange Resins; D007737:Kynurenine / Q000652:urine* / Q000031:analogs & derivatives; D014439:Tyramine / Q000652:urine*; D014443:Tyrosine / Q000652:urine*
D002412:Cations; D007475:Ion Exchange Resins; C005045:3-hydroxykynurenine; D007737:Kynurenine; D014443:Tyrosine; D014439:Tyramine
CYSTINE/urine; ION EXCHANGE RESINS; KYNURENINE/urine; TYRAMINE/urine; TYROSINE/urine