New rhodamine derivative as OFF-ON fluorescent chemosensor for detection of Cu^(2+)  

作　　者：MA Xing LIU Jun DU YuGuo WEI GuoHua WEI DongBin 

机构地区：[1]State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China [2]College of Chemistry and Chemical Engineering, Graduate University of Chinese Academy of Sciences, Beijing 100049, Ghina

出　　处：《Science China Chemistry》2011年第10期1635-1639,共5页中国科学（化学英文版）

基　　金：supported in partial by the National Natural Science Foundation of China (20921063 & 20877090);the National High Technology Research and Development Program (863 Program, 2007AA06A407)

摘　　要：A novel fluorescence probe for the detection of Cu2+ has been designed and synthesized, which is based on a ring-opening reaction of spirolactam triggered by Cu2+ . This probe exhibits excellent Cu2+ ion selectivity as well as significant color changes visible to the naked eye at the concentration of 0.03 mM (ca. 2.0 mg/L), the WHO (World Health Organization) recommended level (2.0 mg/L) of Cu2+ ions in drinking water. This novel rhodamine-based fluorescence probe can be directly used to detect Cu2+ with satisfactory sensitivity and selectivity in aqueous solution.A novel fluorescence probe for the detection of Cu^2＋ has been designed and synthesized, which is based on a ring-opening reaction of spirolactam triggered by Cu^2＋ . This probe exhibits excellent Cu2＋ ion selectivity as well as significant color changes visible to the naked eye at the concentration of 0.03 mM （ca. 2.0mg/L）, the WHO （World Health Organization） recommended level （2.0 mg/L） of Cu^2＋ ions in drinking water. This novel rhodamine-based fluorescence probe can be directly used to detect Cu2＋ with satisfactory sensitivity and selectivity in aqueous solution.

关 键 词：COPPER fluorescent chemosensor RHODAMINE naked-eye detection 

分 类 号：TS207.51[轻工技术与工程—食品科学] TP212.2[轻工技术与工程—食品科学与工程]