title: Human exposure to styrene. I. The gaschromatographic determination of urinary phenylglyoxylic acid using diazomethane derivatization.
mesh_terms: D002849:Chromatography, Gas / Q000379:methods; D003978:Diazomethane; D004781:Environmental Exposure; D006038:Glyoxylates / Q000652:urine*; D006801:Humans; D008333:Mandelic Acids; D013343:Styrenes / Q000652:urine*
chemical_list: D006038:Glyoxylates; D008333:Mandelic Acids; D013343:Styrenes; C012482:phenylglyoxylic acid; D003978:Diazomethane