期刊
MICROCHIMICA ACTA
卷 173, 期 3-4, 页码 477-483出版社
SPRINGER WIEN
DOI: 10.1007/s00604-011-0587-2
关键词
1-Hexyl-3-methylimidazolium hexafluorophosphate; Carbamate pesticides; Temperature controlled ionic liquid dispersive liquid phase microextraction; High performance liquid chromatography
资金
- National Natural Science Foundation of China [20877022]
- Personal Innovation Foundation of Universities in Henan Province [[2005]126]
A simple and sensitive method was developed for the determination of three carbamate pesticides in water samples. It is based on temperature controlled ionic liquid dispersive liquid phase microextraction combined with high-performance liquid chromatography. The ionic liquid 1-hexyl-3-methylimidazolium hexafluorophosphate was used as the extractant, and the factors affecting the extraction were investigated in detail. The detection limits obtained for isoprocarb, diethofencarb and fenothiocarb are 0.91, 0.45, and 1.40 mu gL(-1), respectively, and the precisions are in the range between 1.0 and 1.8% (n = 6). The method was validated with environmental water samples and the results indicate that it represents a viable alternative to existing methods.
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