Spectrophotometric determination of nitrogen dioxide after fixing as nitrite.
D000393:Air Pollutants / Q000032:analysis*; D006801:Humans; D009573:Nitrites / Q000032:analysis*; D009585:Nitrogen Dioxide / Q000032:analysis*; D013053:Spectrophotometry
D000393:Air Pollutants; D009573:Nitrites; D009585:Nitrogen Dioxide