title: Exposure to trace amounts of nitrous oxide. Evaluation of urinary gas content monitoring in anaesthetic practice.
abstract: The urinary content of nitrous oxide was monitored during routine anaesthetic practice. There was a linear correlation with simultaneous measurements of technical exposure measured with a personal pump-bag sampling system (r = 0.99). Monitoring of urinary nitrous oxide with headspace extraction and gas chromatographic analysis is a simple and accurate mode of biological monitoring of exposure to nitrous oxide in the atmosphere.
mesh_terms: D000395:Air Pollutants, Occupational / Q000032:analysis*; D000776:Anesthesiology; D002849:Chromatography, Gas; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D008297:Male; D008452:Maximum Allowable Concentration; D008991:Monitoring, Physiologic / Q000379:methods*; D009609:Nitrous Oxide / Q000032:analysis / Q000652:urine*; D013223:Statistics as Topic
chemical_list: D000395:Air Pollutants, Occupational; D009609:Nitrous Oxide