EXPERIENCES WITH THE ANALYTICAL PROCEDURES FOR THE DETERMINATION OF METHYLMERCURY IN ENVIRONMENTAL-SAMPLES

被引：35
作者：
LEE, YH
MUNTHE, J
IVERFELDT, A
机构：
[1] Swedish Environmental Research Institute, Ivl, Göteborg, S-402 58
来源：
APPLIED ORGANOMETALLIC CHEMISTRY | 1994年 / 8卷 / 7-8期
关键词：
METHYLMERCURY; DERIVATIZATION; ETHYLATION; GAS CHROMATOGRAPHY; DIGESTION; SEDIMENT; NATURAL WATER; COLD VAPOR; ATOMIC FLUORESCENCE SPECTROSCOPY;
D O I：
10.1002/aoc.590080717
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The analytical method using ethylation, gas chromatography-cold vapor atomic fluorescence spectroscopy (GC-CV AFS), combined with different pretreatment procedures, has been used for the determination of methylmercury (MeHg) in various aqueous and solid environmental samples. Different types of samples with varying matrices and MeHg concentration levels require different pretreatment procedures in order to isolate/separate MeHg from the sample matrix, and to overcome interferences in the ethylation reaction process. Limitations of different pretreatment procedures (solvent extraction into methylene chloride, distillation under nitrogen dow and alkaline digestion) are discussed and recommendations are given. The influence of the quality of the ethylating reagent on the analytical results is also examined.
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页码：659 / 664
页数：6
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