Simultaneous kinetic-spectrophotometric determination of Nb(V) and Ta(V) using H-point standard addition

被引：2
|
作者：
Afkhami, Abbas [1 ]
Zarei, Ali Reza [1 ]
机构：
[1] Bu Ali Sina Univ, Fac Sci, Dept Chem, Hamadan, Iran
来源：
JOURNAL OF THE CHINESE CHEMICAL SOCIETY | 2006年 / 53卷 / 05期
关键词：
niobium; tantalum; kinetic; spectrophotometric; HPSAM;
D O I：
10.1002/jccs.200600133
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A simple, rapid, precise and accurate kinetic method for simultaneous spectrophotometric determination of Nb(V) and Ta(V) is described. This method is based on the difference between the rate of the reaction of Nb(V) and Ta(V) with 4-(2-pyridylazo)resorcinol (PAR) in the presence of tartaric acid. H-point standard addition method (HPSAM) was used to resolve the mixtures. The results showed that Nb(V) and Ta(V) can be determined simultaneously in the ranges of 0.10-5.0 and 0.50-12.0 mu g mL(-1), respectively. The proposed method was successfully applied to the simultaneous determination of Nb(V) and Ta(V) in several alloy samples.
引用
收藏
页码：995 / 1003
页数：9
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