SPECTROPHOTOMETRIC DETERMINATION OF PALLADIUM WITH SULFOCHLOROPHENOLAZORHODANINE BY FLOW-INJECTION

被引：10

作者：

SHIUNDU, PM ^{[1
]}

WENTZELL, PD ^{[1
]}

WADE, AP ^{[1
]}

机构：

[1] UNIV BRITISH COLUMBIA,DEPT CHEM,AUTOMATED CHEM ANAL LAB,VANCOUVER V6T 1Y6,BC,CANADA

来源：

TALANTA | 1990年 / 37卷 / 03期

关键词：

D O I：

10.1016/0039-9140(90)80062-K

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Sulfochlorophenolazorhodanine (as its sodium salt) has been used in the automated development of a sensitive flow-injection procedure for the spectrophotometric determination of palladium. The resulting method has high sample throughput, good precision, and low consumption of both sample and reagents. The optimum pH for the reaction is 5.0 and the response is constant at pH between 4.7 and 5.3. The sensitivity (calibration slope) of the procedure is 4.4 × 103 l./mole. The linear dynamic range is 0.045-30.0 μg/ml. The sample throughput is at least 120/hr. An automated procedure for optimization of analytical variables is described and a two-variable response surface for the system is given. Interference studies on 19 metal ions show that the method has good selectivity. © 1990.

引用

页码：329 / 336

页数：8

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