title: Quantitative measurement of octopamines and synephrines in urine using capillary column gas chromatography negative ion chemical ionization mass spectrometry.
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods; D006801:Humans; D007536:Isomerism; D008297:Male; D008875:Middle Aged; D009655:Octopamine / Q000031:analogs & derivatives* / Q000652:urine; D013578:Synephrine / Q000031:analogs & derivatives* / Q000652:urine
chemical_list: D009655:Octopamine; D013578:Synephrine