SELECTIVE PRECONCENTRATION OF THALLIUM ON MODIFIED SILICA-GEL FOR ITS DETERMINATION BY FLAME EMISSION AND ABSORPTION SPECTROMETRY

被引：22

作者：

OTRUBA, V

STEPANKOVA, J

SOMMER, L

机构：

[1] Department of Analytical Chemistry, Masaryk University, 611 37 Brno

来源：

TALANTA | 1994年 / 41卷 / 07期

关键词：

D O I：

10.1016/0039-9140(94)80090-1

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Thallium (0.02-20 mug) was successfully preconcentrated on silica gel C18 from 0.1M hydrochloric acid in the presence of various cationic surfactants as ion pairs with tetrachlorothallate(III), and subsequently eluted with %% ethanol. Of various atomic spectrometric procedures considered, emission spectrometry in a nitrous oxide-acetylene flame is suitable for the final determination of thallium in plants, this is more sensitive for thallium than flame atomic absorption spectrometry.

引用

页码：1185 / 1190

页数：6

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