Spectrophotometric determination of nitr
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H.P.S. Rathore; S.K. Tiwari
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Article
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1991
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Elsevier Science
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English
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Nitrite reacts with 3-nitroaniline in the presence of hydrochloric acid to form a diazonium cation, which is subsequently coupled with N-(1-naphtyl)ethylenediammonium chloride to form a stable purple azo dye. The method is suitable for the determination of 0.01-0.80 pg ml-' nitrite. The reactions ar