Simultaneous spectrophotometric determination of zinc and nickel in water samples by mean centering of ratio kinetic profiles

被引:3
|
作者
Madrakian, Tayyebeh [1 ]
Moein, Roshanak [1 ]
Bahram, Morteza [2 ]
机构
[1] Bu Ali Sina Univ, Fac Chem, Hamadan, Iran
[2] Urmia Univ, Dept Chem, Fac Sci, Orumiyeh, Iran
关键词
mean centering of ratio kinetic profiles; Ni(II); Zn(II);
D O I
10.1002/jccs.200800118
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The mean centering of ratio kinetic profiles method was used for the simultaneous determination of binary mixtures of Ni(II) and Zn(II) in water samples, without prior separation steps. The method is based on the difference in the rate of the reaction of Ni(II) and Zn(II) with xylenol orange at pH 5.3. The method allows rapid and accurate determination of Ni(II) and Zn(II). The analytical characteristics of the methods for the simultaneous determination of binary mixtures of Ni(II) and Zn(II) were calculated. The linear range was 0.025-2.400 mu g mL(-1) and 0.025-2.20 mu g mL(-1) for Zn(II) and Ni(II), respectively. Interference effects of common anions and cations were studied, and the method was successfully applied to the simultaneous determination of Zn(II) and Ni(II) in water samples.
引用
收藏
页码:788 / 793
页数:6
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