期刊论文

中文

分析测试学报

1004-4957

2005

24

2

41-44

10.3969/j.issn.1004-4957.2005.02.011

教育部高校骨干教师基金(2000K52141) 湖南省教育厅科研项目资助课题(2003C383)

本校为其他机构

以磺胺异噁唑为模板分子,二甲基丙烯酸乙二醇酯为交联剂,分别用甲基丙烯酸和4-乙烯基吡啶为功能单体,采用牺牲硅胶法合成了磺胺异噁唑分子印迹聚合物;通过静态平衡结合法和Scatchard分析法,系统研究了不同单体对聚合物识别性能和选择性的影响;对比磺胺异噁唑和磺胺二甲嘧啶的结合特性,以4-乙烯基吡啶为功能单体的印迹聚合物具有较好的选择性;Scatchard分析表明,该印迹聚合物在印迹过程中形成了两类不同的结合位点,计算了离解常数分别为2.01×10-4和7.30×10-3mol/L.

A molecularly imprinted sulfisoxazole(SIZ)polymer was prepared based on silica gel as sacrifiˉcial material.In the procedure,methacrylic acid(MAA)or4-vinylpyridine(4-Vp)was selected as functionˉal monomers,glycol dimethacrylate(EDMA)as crosslinker.Polymer properties,which were influenced by different functional monomers,were investigated with static adsorption experiments and scatchard analysis.The results showed that the imprinted polymer with4-vinylpyridine as functional monomers exhibited good affinity for sulfisoxazole.Scatchard analysis ...