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Nitrates and nitrites in natural samples are determined by ion chromatography and spec-trophotometric methods. The spectrophotometric method most often used for the determination of nitrites is the Griess-IIosvay one, based on the reaction of diazotization of the primary aromatic amines followed by coupling of diazonium salts yielding azo dye. The same method can be used for the determination of nitrates,...
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