期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 170, 期 2-3, 页码 1247-1255出版社
ELSEVIER
DOI: 10.1016/j.jhazmat.2009.05.125
关键词
MISPE; Central composite design; Water samples; Herbicides; Ametryn
资金
- Tehran University of Medical Sciences and Health Services [132-56-73]
- cooperation of the University
- Center for Environmental Research (CER)
In recent years, there has been a significant increase in molecularly imprinted solid-phase extraction (MISPE) technique for the purification and clean-up of environmental samples. In this study, solid-phase extraction using the imprinted polymer has been optimized with the experimental design approach for a triazine herbicide, named ametryn with regard to the critical factors such as sample pH, sample concentration, sample flow-rate, sample volume, elution solvent, washing solvent and sorbent mass. These factors were evaluated statistically and also validated with spiked drinking water samples and showed a good reproducibility over six consecutive days as well as six within-day experiments. Also, in order to the evaluate efficiency of the optimized MISPE protocols, enrichment capacity, reusability and cross-reactivity of cartridges have been studied. Finally, a selective MISPE was successfully demonstrated for ametryn with a recovery of above 90% for spiked drinking water samples. It was concluded that the central composite design could prove beneficial for aiding the MIP and MISPE development. (C) 2009 Elsevier B.V. All rights reserved.
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