TY - JOUR T1 - Synthesis and characterization of a propazine imprinted polymer for the extraction of triazines herbicides. AU - Guzzella,L, AU - Pozzoni,F, AU - Baggiani,C, PY - 2008/1/15/pubmed PY - 2008/4/15/medline PY - 2008/1/15/entrez SP - 139 EP - 44 JF - Water science and technology : a journal of the International Association on Water Pollution Research JO - Water Sci Technol VL - 57 IS - 1 N2 - A MIP (molecularly imprinted polymer) was synthesized and evaluated for its use as sorbent for solid phase extraction (MISPE) of common used triazines (atrazine and terbuthylazine) and their widespread metabolites (desethyl-atrazine and desethyl-terbuthylazine) in water samples. MIP was produced by bulk polymerisation using methacrylic acid as functional monomer, ethylene glycol dimethacrylate as cross-linker, propazine as template and toluene as porogen solvent. Different washing methods of the synthesized polymer were evaluated. Soxhlet extraction provided the best results with a residual concentration of propazine, ranging from 0.78 to 2.86 mug for 1 g of polymer. Capacity factor was calculated using a 5 cm HPLC column filled with MIP and NIP (Not Imprinted Polymer): data extrapolation indicated a log Kw of 4.3 for MIP and a log Kw of 3.5 for NIP. Also frontal analyses confirmed a different behaviour of the two polymers. By comparing the recovery efficiency of MIP with that of traditional LiChrolut EN cartridge in the extraction of a River Po water sample, the results confirmed the reliability of this new technique for the analysis of herbicide compounds. SN - 0273-1223 UR - https://www.unboundmedicine.com/medline/citation/18192751/Synthesis_and_characterization_of_a_propazine_imprinted_polymer_for_the_extraction_of_triazines_herbicides_ DB - PRIME DP - Unbound Medicine ER -