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Molecularly imprinted polymer for analysis of trace atrazine herbicide in water |
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| Authors: | Pamornrat Kueseng Mathieu L. Noir Bo Mattiasson Panote Thavarungkul Proespichaya Kanatharana |
| Affiliation: | 1. Trace Analysis and Biosensor Research Center , Prince of Songkla University , Songkhla, Thailand;2. Center for Innovation in Chemistry, Faculty of Science , Prince of Songkla University , Songkhla, Thailand;3. Department of Chemistry, Faculty of Science , Prince of Songkla University , Songkhla, Thailand;4. Department of Biotechnology , Lund University , Lund, Sweden;5. Department of Physics, Faculty of Science , Prince of Songkla University , Songkhla, Thailand |
| Abstract: | A molecularly imprinted polymer (MIP) for atrazine was synthesized by non-covalent method. The binding capacity of MIP was 1.00 mg g? 1 polymer. The selectivity and recovery were investigated with various pesticides which are mostly, found in the environment, for both similar and different chemical structure of atrazine. The competitive recognition between atrazine and structurally similar compounds was evaluated and it was found that the system provided highest recovery and selectivity for atrazine while low recovery and selectivity were obtained for the other compounds. The highest recovery was obtained from MIP compared with non-imprinted polymer (NIP), a commercial C18 and a granular activated carbon (GAC) sorbent. The method provided high recoveries ranged from 94 to 99% at two spiked levels with relative standard deviations less than 2%. The lower detection limit of the method was 80 ng L? 1. This method was successfully applied for analysis of environmental water samples. |
| Keywords: | Molecularly imprinted polymer atrazine molecularly imprinted solid phase extraction (MISPE) solid phase extraction high performance liquid chromatography |