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Fabrication of Atrazine Molecularly Imprinted Polymer Microsphere by Two Step Seed Swelling Polymerization Method
Author(s) -
Chen Jun,
Bai Lianyang,
Zhang Yijun,
Chen Na,
Zhang Yuping
Publication year - 2012
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.201200313
Subject(s) - chemistry , ethylene glycol dimethacrylate , molecularly imprinted polymer , methacrylic acid , polymer , atrazine , chromatography , swelling capacity , polymerization , swelling , dodecanol , toluene , peg ratio , polymer chemistry , monomer , chemical engineering , organic chemistry , selectivity , engineering , finance , pesticide , catalysis , biology , agronomy , economics
Atrazine molecularly imprinted polymer microspheres (MIPMs) were fabricated by two step seed swelling polymerization method, using atrazine as a template molecule, methacrylic acid (MAA) as a functional monomer, ethylene glycol dimethacrylate (EDMA) as a crosslinking agent and toluene/dodecanol as a porogenic agent and a series of MIPMs with even particle size of 3‐5 μm and good dispersivity could be obtained under the optimal condition. Equilibrium binding experiments were comparably studied about the binding capacity of the resulted polymers. We packed the polymers into empty chromatographic steel tube columns (2.1 mm I.D. × 10 cm) to prepare liquid chromatographic columns used for the evaluation of specificity with similar structure compounds. The proposed method has been successfully applied to the determination of limited atrazine in water samples. The results showed that a good linear relationship of atrazine was maintained within 0.1‐20 mg/L (r = 0.9992), the sample recovery was in a range of 92.1‐102.0%, with a RSD lower than 5% (n = 6) and a detection limit of 0.041 mg/L.