文献类型：期刊文献

英文题名：Thiocarbonyl quinacridone-based "turn on" fluorescent chemodosimeters for highly sensitive and selective detection of Hg(II)

作者：Qu, Yi;Yang, Jiabao;Hua, Jianli[1];Zou, Lei

机构：[1]E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China; E China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China

年份：2012

卷号：161

期号：1

起止页码：661

外文期刊名：SENSORS AND ACTUATORS B-CHEMICAL

收录：;EI(收录号：20120514722295);WOS:【SCI-EXPANDED(收录号:WOS:000301549400089)】；

基金：This work was supported by NSFC/China (2116110444 and 21172073), National Basic Research 973 Program (2011CB808400), the Fundamental Research Funds for the Central Universities (WJ0913001), and the Scientific Committee of Shanghai (10520709700).

语种：英文

外文关键词：Chemodosimeter; Thiocarbonyl quinacridone; Hg2+; "Turn-on" type fluorescent sensor

摘要：Two new thiocarbonyl quinacridone compounds (TQA-H and TQA-TPA) were designed and synthesized, and their fluorescent behaviors toward various metal ions were investigated. The measurements of sensing behavior to various metal ions reveal that both of them are excellent "turn on" fluorescent chemosensors for mercury ion. Addition of Hg2+ to the chloroform solution of TQA-TPA gave the lowest detection limit at 4.7 nM. In addition, colorimetric changes of sensors interacted with Hg2+ are also successfully demonstrated. The recognition is attributed to Hg2+-induced conversion of thiocarbonyl quinacridones into their carbonyl analogues. (C) 2011 Elsevier B.V. All rights reserved.