COLORIMETRIC DETERMINATION OF NITRITES WITH P-DIAMINODIPHENYLSULPHONE-DIPHENYLAMINE AS REAGENT

被引:17
作者
SZEKELY, E
机构
[1] Negev Institute for Arid Zone Research, Beersheva
关键词
D O I
10.1016/0039-9140(68)80172-9
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Diaminodiphenylsulphone-diphenylamine is used in a new colorimetric method for the determination of nitrite over a range of 0.1-2.5 mg l. at pH 1.8 and 0.22-0.4 mg l. at pH about 0.1. The coloured solutions are stable, follow Beer's law and are suitable for determination of traces by visual comparison. The method is selective and neither chlorine nor nitrogen trichloride gives similar colour reactions. © 1968.
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页码:795 / +
页数:1
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