Quantitative kinetic determination of Sb(V) and Sb(III) by spectrophotometric H-point standard addition method

被引：17

作者：

Abbaspour, A ^{[1
]}

Najafi, M ^{[1
]}

Kamyabi, MA ^{[1
]}

机构：

[1] Shiraz Univ, Fac Sci, Dept Chem, Shiraz 71454, Iran

来源：

ANALYTICA CHIMICA ACTA | 2004年 / 505卷 / 02期

关键词：

HPSAM; antimony; pyrogallol red; kinetic; spectrophotometric;

D O I：

10.1016/j.aca.2003.10.072

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The H-point standard addition method (HPSAM) was applied to kinetic data for simultaneous determination of Sb(V) and Sb(III) and also selectively determines Sb(V) in the presence of Sb(III). The method is based on the differences between rate of complexation of pyrogallol red with Sb(V) and Sb(III) at pH = 2. Sb(V) can be determined in the range of 0.3-2.0 mug ml(-1) with satisfactory accuracy and precision in the presence of excess Sb(III). Good selectivity was obtained over the variety of metal ions. The proposed method was used for determination of Sb(V) and Sb(III) in river and spring water samples. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：301 / 305

页数：5

共 26 条

[1] Simultaneous determination of Sb(III) and Sb(V) by partial least squares regression [J].