文献类型：期刊文献

英文题名：Novel "turn-on'' fluorescent chemodosimeters based on thioxanthen-9-thione for the selective detection of mercuric ions in aqueous media

作者：Ding, Li[1];Zou, Qi;Qu, Yi;Su, Jianhua

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：2

期号：11

起止页码：4754

外文期刊名：RSC ADVANCES

收录：;EI(收录号：20122215062896);WOS:【SCI-EXPANDED(收录号:WOS:000304148400030)】；

语种：英文

外文关键词：Dosimetry

摘要：Two Hg2+-selective chemodosimeters based on thioxanthen-9-thione (DP-TXT and BDPA-TXT) were synthesized and structurally characterized. The highly sensitive and selective chemodosimetric behaviors of thioxanthen-9-thione towards Hg2+ ions were investigated. Significant chromogenic and fluorogenic signaling occurred from the transformation of thioxanthen-9-thione to thioxanthen-9-one by Hg2+-induced selective desulfurization. Both of the two probes exhibit excellent Hg2+-specific fluorescence enhancement over various competitive cations in aqueous media.