HEAVY-METAL DETERMINATION AND SPECIATION - ANODIC-STRIPPING VOLTAMMETRY EMPLOYING MICROELECTRODES

被引：16

作者：

FEINBERG, JS ^{[1
]}

BOWYER, WJ ^{[1
]}

机构：

[1] HOBART & WILLIAM SMITH COLL,DEPT CHEM,GENEVA,NY 14456

来源：

MICROCHEMICAL JOURNAL | 1993年 / 47卷 / 1-2期

关键词：

D O I：

10.1006/mchj.1993.1014

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

We describe the preparation of mercury microelectrodes for application to speciation studies of heavy metals in natural waters. The mercury electrodes have a radius of 5 μm and are applicable to anodic stripping voltammetry in solutions with or without intentionally added electrolyte. However, naturally occurring salts could be an important interference for ASV measurements in untreated samples. Electrode size has no significant influence on the portion of lead detected when the metal is in equilibrium with humic acid, a naturally occurring complexing agent. However, the electrolyte concentration affects the portion of metal described as electrochemically labile. © 1993 Academic Press. All rights reserved.

引用

页码：72 / 78

页数：7

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