荧光金纳米团簇的制备及其在汞离子检测中的应用  

Synthesis of fluorescent gold nanoclusters and its applications to the determination of Hg^(2+)

作　　者：董哲[1] 李阳[2] 谢立娟[1] 王晓红[1] 席海山[1] 

机构地区：[1]内蒙古民族大学分析测试中心,通辽028000 [2]通辽市医院骨一科,通辽028000

出　　处：《分析试验室》2016年第12期1398-1401,共4页Chinese Journal of Analysis Laboratory

基　　金：国家自然科学基金(21261014);内蒙古民族大学博士启动基金项目(BS369)资助

摘　　要：以牛血清蛋白(BSA)为还原剂和保护剂,制备了具有一定荧光性能的水溶性金纳米团簇(BSA-Au NCs),并对其结构和荧光性能进行了表征,同时还考察了合成时间和体系p H对荧光性能的影响。基于BSA-Au NCs对Hg^(2+)有一定的响应,建立了快速检测Hg^(2+)的新方法。Hg^(2+)浓度在一定的范围内(0.05~50μmol/L)与BSA-Au NCs荧光强度有着良好的线性关系。方法可用于实际水样中Hg^(2+)的测定。BSA was used as both a stabilizing agent and a reductant to synthesize water - soluble fluorescent BSA -Au NCs. A novel and highly sensitive sensor was developed for the determination of Hg^2＋ , according to the phenomenon that the fluorescence intensity of BSA -Au NCs was obviously reduced with the addition of Hg^2＋. The fluorescent intensity was linear to the concentration of Hg^2＋ ranging from 0.05 to 50 μM. The developed method was successfully applied to the determination of Hg^2＋ in real sample.

关 键 词：金纳米团簇 牛血清蛋白 荧光探针 汞离子 

分 类 号：X832[环境科学与工程—环境工程]