Anaerobic spectrophotometry: an improved cuvette.
D009584:Nitrogen; D010100:Oxygen; D013053:Spectrophotometry / Q000295:instrumentation*; D013056:Spectrophotometry, Ultraviolet / Q000295:instrumentation; D013997:Time Factors; D014969:Xanthine Oxidase / Q000032:analysis
D014969:Xanthine Oxidase; D009584:Nitrogen; D010100:Oxygen