Analytical Sciences
Online ISSN : 1348-2246
Print ISSN : 0910-6340
ISSN-L : 0910-6340
THE DETERMINATION OF Se ENVIRONMENTAL BACKGROUND VALUE IN NATURAL RIVER WATER USING MIXED MATRIX MODIFIER-STPF
LI-CHING TIANFENG PENGXIAO-RONG WANG
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1991 Volume 7 Issue Supple Pages 1155-1158

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Abstract

A method is described for the determination of the Se in river water after precorncentration by stabilized temperature platform furnace and Zeeman background correction. A mixture of platinum and ascorbic acid was proved to be an adequte and powerful matrix modifier for the determination. Thermal pretreatment temperature of 1200°C can be used with the proposed modifier and concentration can be obtained directly via calibration curve without using the standard-addition technique. The method is sensitive, reliable and relatively simple, with the chracteristic mass, detection limit and recovery, 19.5pg/0.0044A.S., 1.55μg/L and 85.0-110.0%, respectively.

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© The Japan Society for Analytical Chemistry
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