Cholic acid-based fluorescent sensor for mercuric and methyl mercuric ion in aqueous solutions

被引:42
作者
Wang, Hao [1 ]
Chan, Wing-Hong [1 ]
机构
[1] Hong Kong Baptist Univ, Dept Chem, Kowloon, Hong Kong, Peoples R China
关键词
cholic acid; mercury chemosensor; fluorescence; OFF-ON type signaling;
D O I
10.1016/j.tet.2007.06.026
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Cholic acid-based fluorescent PET sensor probe 1, bearing a pair of dithiocarbamate pendants as the receptive site and anthracene moiety as the signal displaying unit, was designed and synthesized. The sensor probe not only shows high selectivity and sensitivity to Hg2+ in aqueous acetonitrile solution, but also responds moderately to MeHg+. A distinctive OFF-ON type signaling of up to 10-fold enhancement was observed for this new sensor probe toward Hg2+. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码:8825 / 8830
页数:6
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