SPECTROPHOTOMETRIC DETERMINATION OF NITRITE WITH 4-IODO-N,N-DIMETHYLANILINE

被引：14

作者：

NIKONOROV, VV ^{[1
]}

MOSKVIN, LN ^{[1
]}

机构：

[1] ST PETERSBURG STATE UNIV,DEPT CHEM,ST PETERSBURG 198904,RUSSIA

来源：

ANALYTICA CHIMICA ACTA | 1995年 / 306卷 / 2-3期

关键词：

SPECTROPHOTOMETRY; FLOW SYSTEM; NITRITE; NITRATE; WATERS;

D O I：

10.1016/0003-2670(94)00682-C

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The nitrosation reaction of p-halogen derivatives of N,N-dimethylaniline was considered. It was discovered that the behaviour of 4-iodo-N,N-dimethylaniline (IDAN) in this reaction essentially differs from that of analogues. During its interaction with nitrite an intensively coloured substance is formed. For this reason IDAN was studied as a possible reagent for nitrite determination. The investigations showed that it surpasses the best known analogues with regard to analytical properties, so a method of nitrite determination in natural and waste water was worked out. The method is rapid (15 min), one-stage, non-sensitive to most admixtures and has a low detection limit (2 mu g/l nitrite nitrogen). The reagent is suitable for the flow-injection determination of nitrite and nitrate.

引用

页码：357 / 360

页数：4

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