FUMED SILICA FOR THE DIRECT DETERMINATION OF LEAD IN URINE BY DIFFERENTIAL-PULSE ANODIC-STRIPPING VOLTAMMETRY

被引：10
|
作者：
STAUBER, JL
FLORENCE, TM
机构：
[1] CSIRO Centre for Advanced Analytical Chemistry, Division of Fuel Technology, Menai, NSW
来源：
ANALYTICA CHIMICA ACTA | 1990年 / 237卷 / 01期
关键词：
Fumed silica; Lead; Urine;
D O I：
10.1016/S0003-2670(00)83915-X
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The use of fumed silica for the direct determination of lead in urine by differential-pulse anodic stripping voltammetry was investigated. Fumed silica, added to urine prior to the nitrogen purge step, completely removed sorption interferences by urinary organic constituents. Values for lead in urine from eight unexposed individuals were 3 ± 2 μg l-1 or 3 ± 2 μg g-1 creatinine. This method is a fast, simple and effective means for the accurate determination of lead in undiluted urine without pretreatment. © 1990.
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页码：177 / 180
页数：4
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