[UV spectrometric nitrate determination in surface waters].
D005618:Fresh Water / Q000032:analysis*; D005859:Germany, East; D009566:Nitrates / Q000032:analysis*; D013056:Spectrophotometry, Ultraviolet; D014867:Water / Q000032:analysis*
D009566:Nitrates; D014867:Water
UV-spektrometrische Nitrat-Bestimmung in Oberflchengewäsern.