[Gas chromatographic determination of nitrates and nitrites in water].
D002849:Chromatography, Gas / Q000379:methods*; D009566:Nitrates / Q000032:analysis*; D009573:Nitrites / Q000032:analysis*; D014873:Water Pollutants; D014874:Water Pollutants, Chemical
D009566:Nitrates; D009573:Nitrites; D014873:Water Pollutants; D014874:Water Pollutants, Chemical
O gazokhromatograficheskom opredelenii nitratov i nitritov v vode.