期刊
JOURNAL OF CHROMATOGRAPHY A
卷 1227, 期 -, 页码 60-66出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.chroma.2012.01.012
关键词
Molecularly imprinted polymers; Pyrethroid insecticides; Gas chromatography-electron capture detection; Solid phase extraction
资金
- Ningbo Science and Technology Bureau [2009C50028]
- National Natural Science Foundation of China [31001139]
- Science and Technology Department of Zhejiang Province [2010C33054]
- Specialized Research Fund for the Doctoral Program of Higher Education [20103305120001]
- Ningbo University [xkl11101]
- Natural Science Foundation of Ningbo [2009A610146]
- Ningbo University
Two types of molecularly imprinted polymers (MIPs) for the simultaneous determination of six pyrethroid insecticides have been developed using deltamethrin (D-MIPs) and cypermethrin (C-MIPs) as template molecules. A comparison of the performance of D-MIPs, C-MIPs, and the corresponding non-imprinted polymers (NIPs) were conducted. Stronger group-selective interactions between the C-MIPs and the six pyrethroid insecticides were achieved. The MISPE method based on the C-MIPs displayed higher extraction recoveries (86.4-96.0%) with RSD values ranging from 2.4 to 7.8% for the six pyrethroid insecticides in aquaculture seawater. After the C-MIP cartridge procedure, the limits of detection and quantification for fenvalerate, deltamethrin, cypermethrin, cyfluthrin, and bifenthrin were in the 16.6-37.0 and 55.3-109.1 ng L-1 ranges, respectively, and 0.68 and 2.26 mu g L-1 for phenothrin, respectively. The proposed MISPE method coupled with gas chromatography-electron capture detection was successfully used for the determination of the six pyrethroid insecticides in aquaculture seawater. (C) 2012 Elsevier B.V. All rights reserved.
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