kinetic-spectrophotometric determination of trace amounts of nitrite by the reaction of methyl orange formation
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abstract
the composite diazotization coupling reaction of sulfanilic acid and n, ndimethylaniline was used for the precise, accurate, and rapid determination of trace amounts of nitrite ion (0.02-3 µg/ml). the reaction was monitored spectrophotometrically by measuring the absorbance of the produced methyl orange at 510 nm by a fixed the method of 5.0 minutes. the relative standard deviation for the determination of 0.50 µg/ml of nitrite was 1.8% (n=l 1). the method was used for the determination of nitrite in sausage and water samples
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Journal title:
journal of sciences islamic republic of iranجلد ۸، شماره ۲، صفحات ۰-۰
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