Journal
ANALYTICA CHIMICA ACTA
Volume 650, Issue 1, Pages 70-76Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.aca.2009.04.016
Keywords
Molecularly imprinted polymer; Micro-solid phase extraction; Precipitation polymerization; 2,4,6-Trichlorophenol; Phenolic compounds; High performance liquid chromatography
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Funding
- National Natural Science Foundation of China [20728505]
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The molecularly imprinted polymer with 2,4,6-trichlorophenol (2.4,6-TCP) as the template molecule and methylacrylic acid (MAA), divinylbenzene (DVB) as functional monomer and the crosslinker, respectively, has been prepared and used as molecularly imprinted micro-solid phase extraction (MIMSPE) procedure for the selectively preconcentration of phenolic compounds from environmental water samples. Various parameters for the extraction efficiency of the MIMSPE have been evaluated. The optimized MIMSPE method allowed the extraction of the analytes from the sample matrix followed by a selective washing step using acetonitrile containing 0.3% (v/v) acetic acid. The characteristics of the MIMSPE method were valid by high performance liquid chromatography. The recoveries ranged between 88.9% and 102.5% for tap water, between 80.0% and 94.0% for river water, between 80.0% and 90.5% for sewage water fortified with 0.4 mg L-1 of phenol, 4-chlorophenol (4-CP), 2,4-dichlorophenol (2,4-DCP), 2,4,6-TCP. pentachlorophenol (PCP) were obtained. This method has been successfully applied to preconcentrate and determine of phenolic compounds in environmental water samples directly. (C) 2009 Elsevier B.V. All rights reserved.
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