ADSORPTIVE STRIPPING MEASUREMENTS OF TRACE ALUMINUM IN THE PRESENCE OF CUPFERRON

被引：39
|
作者：
WANG, J
LU, JM
SETIADJI, R
机构：
[1] Department of Chemistry, New Mexico State University, Las Cruces
来源：
TALANTA | 1993年 / 40卷 / 03期
关键词：
D O I：
10.1016/0039-9140(93)80245-M
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The adsorptive collection of the aluminum complex with cupferron is exploited for developing a highly sensitive stripping procedure for trace aluminum. Optimal experimental conditions include the use of 2 x 10(-4)M cupferron in PIPES buffer (pH 7.0), an accumulation potential of -0.40 V and a linear potential scan. With controlled accumulation for 2 min, a detection limit near 30 ng/l. aluminum is obtained. The relative standard deviation (at 5 mug/l.) is 2.9%. Possible interferences are evaluated. The analytical performance compares favourably with that of early adsorptive stripping schemes for aluminum.
引用
收藏
页码：351 / 354
页数：4
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