Investigation of the species-specific degradation behaviour of methylmercury and ethylmercury under microwave irradiation

被引：13

作者：

Abrankó, L ^{[1
]}

Jókai, Z ^{[1
]}

Fodor, P ^{[1
]}

机构：

[1] Corvinus Univ Budapest, Dept Appl Chem, H-1118 Budapest, Hungary

来源：

ANALYTICAL AND BIOANALYTICAL CHEMISTRY | 2005年 / 383卷 / 03期

基金：

匈牙利科学研究基金会;

关键词：

methylmercury; ethylmercury; microwave; degradation; phenylation;

D O I：

10.1007/s00216-005-3395-x

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

The degradation behaviour of methylmercury (MeHg) under microwave irradiation is investigated, as is the (different) degradation behaviour of ethylmercury (EtHg) under similar irradiation. A simple and highly sensitive SPME-GC-pyrolysis-AFS system was used to analyse the aqueous MeHg and EtHg standard solutions after derivatization with sodium tetraphenylborate (NaBPh4). Samples were irradiated in a microwave digester at microwave powers ranging from 20 to 160 W for durations of 2 to 10 min. The different tolerances towards microwave treatment of the two organomercury species were evident. Practically no degradation was experienced for MeHg for up to 8 minutes of irradiation at 120 W or for up to 4 minutes at 160 W. Significant analyte loss was observed for EtHg after 2 minutes at 40 W of microwave power.

引用

页码：448 / 453

页数：6

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