钯(Ⅱ)离子印迹聚合物的制备及其对钯(Ⅱ)离子的分离和富集性能
Preparation of Pd(Ⅱ)-Imprinted Polymer and Study on Its Property of Separation and Enrichment of Palladium(Ⅱ)
摘 要
以钯(Ⅱ)离子作为印迹离子,采用硅胶表面修饰技术,合成了钯(Ⅱ)离子印迹聚合物,并研究了离子印迹聚合物和非印迹聚合物对钯(Ⅱ)离子的分离富集特性,结果表明:对钯(Ⅱ)离子的富集,离子印迹聚合物与非印迹聚合物的吸附量分别是26.71 mg·g-1和10.13 mg·g-1,这说明离子印迹聚合物比非印迹聚合物对印迹离子的选择性高得多.提出以此作为钯(Ⅱ)离子的富集方法与电感耦合等离子体原子发射光谱法测定相结合,分析了两件地质标准物质,测得钯的含量与标准值一致.
印迹聚合物
钯(Ⅱ)离子
富集
ICP-AES determination
Imprinted polymer
Palladium ion
Enrichment
Abstract
Pd(Ⅱ)-imprinted polymer was prepared by the technique of surface modification of silica gel. Specific property of the Pd(Ⅱ) ion imprinted polymer was studied and compared with those of non-imprinted polymer. Values of maximum static adsorption capacity of the imprinted polymer and non-imprinted polymer for Pd(Ⅱ) ion were found to be 26.71 mg·g-1 and 10.13 mg·g-1 respectively,which showed that much higher selectivity was attained by the imprinted polymer for Pd(Ⅱ) as compared with the selectivity of the non-imprinted polymer. The proposed method was used as an effective method for enrichment of Pd(Ⅱ) ion in its ICP-AES determination in geological samples. Results obtained were in consistency with the standard values.
中图分类号 O652.63
所属栏目 工作简报
基金项目
收稿日期 2008/4/27
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备注薛庆华(1957-),男,山东临沂人,副教授,研究方向为分离富集与现代光谱分析.
引用该论文: XUE Qing-hua. Preparation of Pd(Ⅱ)-Imprinted Polymer and Study on Its Property of Separation and Enrichment of Palladium(Ⅱ)[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2009, 45(7): 783～786
薛庆华. 钯(Ⅱ)离子印迹聚合物的制备及其对钯(Ⅱ)离子的分离和富集性能[J]. 理化检验－化学分册, 2009, 45(7): 783～786
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参考文献
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