分子导线聚合物在氰根阴离子检测中的应用研究  

Application of Molecule Wire Polymer in the Determination of Cyanide

作　　者：翟秋阁[1] 黄红梅[1] 王柯敏[1] 谭蔚泓[1] 黄杉生[1] 金燕[1] 李邦锐[1] 

机构地区：[1]湖南大学化学化工学院

出　　处：《高等学校化学学报》2005年第1期46-48,共3页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金重点项目(批准号:20135010);国家重点基础研究发展规划项目(批准号:2002CB513100-10);国家高科技发展规划项目(批准号:2003AA302250);科技部国际合作重点项目(批准号:2003DF000039);国家科技攻关计划项目(批准号:2003BA310A16)资助

摘　　要：A new method, molecule wire polymer, was developed for the determination of cyanide based on the competitive reaction. The fluorescence of the molecule wire polymer is quenched due to ion-association with Pd 2+ and restored when cyanide was added into the system. The linear detection range is 5×10 -6—2×10 -4 mol/L and the detection limit is 1×10 -7 mol/L for cyanide under optimal conditions. The possible mechanism of the method was investigated by using absorption spectra. This approach provides a potential useful method for anion detection with a high sensitivity and selectivity.A new method, molecule wire polymer, was developed for the determination of cyanide based on the competitive reaction. The fluorescence of the molecule wire polymer is quenched due to ion-association with Pd 2+ and restored when cyanide was added into the system. The linear detection range is 5×10 -6—2×10 -4 mol/L and the detection limit is 1×10 -7 mol/L for cyanide under optimal conditions. The possible mechanism of the method was investigated by using absorption spectra. This approach provides a potential useful method for anion detection with a high sensitivity and selectivity.

关 键 词：分子导线聚合物 氰根离子 荧光检测 

分 类 号：O652.7[理学—分析化学]