DETERMINATION OF METHYLMERCURY IN NATURAL-WATERS BY HEADSPACE GAS-CHROMATOGRAPHY WITH MICROWAVE-INDUCED PLASMA DETECTION AFTER PRECONCENTRATION ON A RESIN CONTAINING DITHIOCARBAMATE GROUPS

被引：48
作者：
LANSENS, P
MEULEMAN, C
LEERMAKERS, M
BAEYENS, W
机构：
[1] Laboratorium voor Analytische Chemie, Vrije Universiteit Brussel, 1050 Brussels
来源：
ANALYTICA CHIMICA ACTA | 1990年 / 234卷 / 02期
关键词：
Methylmercury; Plasmas; Sea water; Waters;
D O I：
10.1016/S0003-2670(00)83585-0
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A method for the determination of methylmercury at ng l-1 levels in natural waters is described. Methylmercury present in a sample is first preconcentrated on a column of a resin containing dithiocarbamate groups and eluted quantitatively with acidic thiourea solution. Methylmercury in the effluent is then converted to the iodide by addition of sulphuric acid and iodoacetic acid and determined by headspace gas chromatography with microwave-induced plasma detection. The adsorption properties of the resin are discussed. © 1990.
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页码：417 / 424
页数：8
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