title: Quantitative gas chromatography--chemical ionization mass spectrometry of 2-ketoglutarate from urine as its O-trimethylsilyl-quinoxalinol derivative.
mesh_terms: D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods; D006801:Humans; D007656:Ketoglutaric Acids / Q000652:urine*; D011810:Quinoxalines / Q000652:urine*; D012825:Silicon / Q000652:urine*; D014297:Trimethylsilyl Compounds / Q000652:urine*
chemical_list: D007656:Ketoglutaric Acids; D011810:Quinoxalines; D014297:Trimethylsilyl Compounds; C033407:3-hydroxy-2-quinoxalinepropionic acid; D012825:Silicon