Journal
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART B-PESTICIDES FOOD CONTAMINANTS AND AGRICULTURAL WASTES
Volume 44, Issue 8, Pages 772-780Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/03601230903238319
Keywords
Molecularly imprinted polymer; atrazine; molecularly imprinted solid phase extraction (MISPE); solid phase extraction; high performance liquid chromatography
Funding
- Thailand Research Fund
- (The Swedish Research Council)-SIDA (The Swedish International Development Cooperation Agency)
- Center for Innovation in Chemistry (PERCH-CIC)
- Commission on Higher Education
- Ministry of Education, Thailand
- Department of Chemistry
- Faculty of Science
- Graduate School
- Trace Analysis and Biosensor Research Center, Prince of Songkla University, Hat Yai, Thailand
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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 C-18 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.
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