Indirect voltammetric determination of trace hydroxylamine using magnetic microspheres

被引：3

作者：

Yang, M ^{[1
]}

Zhu, JJ ^{[1
]}

机构：

[1] Nanjing Univ, Lab Mesoscop Mat Sci, Dept Chem, Nanjing 210093, Peoples R China

来源：

ANALYST | 2003年 / 128卷 / 02期

关键词：

D O I：

10.1039/b211373b

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A new indirect voltammetric method for the determination of hydroxylamine is described. It is based on the reduction of an electroactive derivative of hydroxylamine on the surface of a magnetic electrode. The electroactive derivative produced by hydroxylamine reacted with magnetic polymer microspheres containing carbonyl groups on the surface. The experimental conditions are discussed. It was found that the peak potential (E-P) of the derivative was -0.46 V (vs. Ag/AgCl) under optimum conditions. Hydroxylamine could be determined in the range of 5-2000 mug l(-1) with the detection limit of 2 mug l(-1) and relative standard deviation for the determination of 100 mug l(-1) hydroxylamine was 2.35%. Satisfactory results were obtained for the determination of hydroxylamine in aqueous medium.

引用

页码：178 / 181

页数：4

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