Sorption–Atomic Absorption Determination of Trace Elements in Natural Waters with Dynamic Preconcentration in Electrothermal Atomizers

被引:0
作者
V. N. Oreshkin
G. I. Tsizin
Yu. A. Zolotov
机构
[1] Institute of Fundamental Problems of Biology,Department of Chemistry
[2] Russian Academy of Sciences,undefined
[3] Pushchino,undefined
[4] Moscow State University,undefined
来源
Journal of Analytical Chemistry | 2002年 / 57卷
关键词
Precipitation; Atomic Absorption; River Water; Small Volume; Natural Water;
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摘要
A sorption–atomic absorption method was proposed for the determination of ultratrace amounts of suspended and soluble forms of Ag, Cd, Bi, Pb, and Tl in natural waters using a dynamic preconcentration of these forms (separately or simultaneously) on the DETATA sorbent placed in a crucible atomizer and the subsequent direct atomic absorption analysis of the concentrate. This method is characterized by high a sensitivity and provides for the determination of elements in small volumes of unique samples. The accuracy of the determination of element species was verified by different methods in the analysis of sea and river water, atmospheric precipitation, and suspensions.
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页码:778 / 783
页数:5
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