摘要
[方法]以醚菌酯为模板分子、甲基丙烯酸(MAA)为功能单体、乙二醇二甲基丙烯酸酯(EDMA)为交联剂、偶氮二异丁腈(AIBN)为引发剂,用沉淀聚合法制备了醚菌酯分子印迹聚合物。[结果]红外光谱分析表明模板分子已洗脱完全。平衡吸附实验及Scatchard分析可知MIPs最大表观结合量为97.11 mg/g。用固相萃取实验富集分离土壤中的醚菌酯,与Florisil柱相比,分子印迹固相萃取柱净化更彻底,减少了杂质对分析的干扰。[结论]沉淀聚合法制备的MIP吸附性较好,具有一定的应用价值。
[Methods] Molecular imprinted polymer （MIP） was synthesized by precipitation polymerization using kresoxim-methyl as template, methacrylic acid （MAA） as monomer, ethylene glycol dimethacrylate （EDMA） as crosslinker and 2,2-azobisisobutyronitrile （AIBN） as initiator. [Results] FT-IR analysis revealed the formation of MIP and the chemical interaction with templates. Equilibrium adsorption experiments and Scatchard analysis showed that the maximum binding reached to 97.11 mg/g. Comparing with Florisil column, the MIP solid phase extraction performed better for enriching and separating the kresoxim-methyl in soil samples, [Conclusions] The prepared MIP exhibited good adsorption property for kresoxim-methyl, and expected to be applied in pesticide analysis.
出处
《农药》
CAS
CSCD
北大核心
2014年第4期248-250,共3页
Agrochemicals
关键词
醚菌酯
沉淀聚合
分子印迹聚合物
固相萃取
kresoxim-methyl
precipitation polymerization
molecularly imprinted polymer
solid phase extraction
