A dansyl based fluorescence chemosensor for Hg2+ and its application in the complicated environment samples

作者:Zhou, Shuai; Zhou, Ze-Quan; Zhao, Xuan-Xuan; Xiao, Yu-Hao; Xi, Gang; Liu, Jin-Ting*; Zhao, Bao-Xiang
来源:Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy , 2015, 148: 348-354.
DOI:10.1016/j.saa.2015.03.126

摘要

We have developed a novel fluorescent chemosensor (DAM) based on dansyl and morpholine units for the detection of mercury ion with excellent selectivity and sensitivity. In the presence of Hg2+ in a mixture solution of HEPES buffer (pH 7.5, 20 mM) and MeCN (2/8, v/v) at room temperature, the fluorescence of DAM was almost completely quenched from green to colorless with fast response time. Moreover, DAM also showed its excellent anti-interference capability even in the presence of large amount of interfering ions. It is worth noting that DAM could be used to detect Hg2+ specifically in the Yellow River samples, which significantly implied the potential applications of DAM in the complicated environment samples.