【摘要】 为了研究印迹聚合物作为固相提取剂在环境分析中的应用,合成了以除草剂单嘧磺隆为印迹分子的印迹聚合物,通过平衡吸附和液相色谱的方法分析了印迹聚合物的识别特性,并研究了不同色谱条件对单嘧磺隆保留因子的影响。研究结果表明,印迹聚合物对印迹分子具有很好的亲和性和特定的选择性,可作为固相提取剂,在单嘧磺隆的残留分析中,对土壤提取样品进行有效的富集与净化。更多还原

【Abstract】 With monosulfuron as the template molecule,a molecularly imprinted polymer(MIP)was preˉpared and used as the solid_phase_extraction material in the environmental analysis.Recognition properˉties of the monosulfuron imprinted polymer were studied by equilibrium adsorption and HPLC.The influˉence of various chromatographic conditions on the retention factors of monosulfuron was also evaluated.It was found that recognition properties of MIPs are greatly influenced by the mobile phase used.The results showthatthe imprinted polymer has good affinityand marked selectivityfor monosulfuron,and it can selecˉtively retain the template and separate the soil impurities from monosulfuron.This implies that it can be used as a solid_phase stationary material for sample enrichment and clean_up in the analysis of monosulˉfuron residues in soils.更多还原