文献类型：期刊文献

英文题名：Colorimetric and ratiometric fluorescent detection of sulfite in water via cationic surfactant- promoted addition of sulfite to α,β-unsaturated ketone

作者：Tian, Haiyu[1];Qian, Junhong[1];Sun, Qian[1];Bai, Hongyan[1];Zhang, Weibing[1]

机构：[1]E China Univ Sci & Technol, Shanghai Key Lab Funct Mat Chem, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China

年份：2013

卷号：788

起止页码：165

外文期刊名：ANALYTICA CHIMICA ACTA

收录：;EI(收录号：20132916510625);WOS:【SCI-EXPANDED(收录号:WOS:000321497700023)】；

基金：This work was financially supported by National 973 Program (No. 2011CB910403) and NSFC (No. 21075039). Dr. J. Qian thanks the Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry. We appreciate Prof. A.M. Brouwer (University of Amsterdam) for his kind help.

语种：英文

外文关键词：Sulfite; Fluorescence probe; Surfactant; alpha,beta-unsaturated ketone

摘要：Three fluorescent probes were constructed by incorporating an alpha,beta-unsaturated ketone to a coumarin fluorophore. The selective addition of sulfite to the alkene of TSP assisted by cetyltrimethyl ammonium bromide (CTAB) micelle can be visualized by dramatic color and ratiometric fluorescence changes. In CTAB-PBS system, the fluorescence intensity ratio at 465 nm and 592 nm (I-465/I-592) and the absorbance ratio at 390 nm and 470 nm (A(390)/A(470)) were linearly proportional to sulfite concentration in the range of 0.5-150 mu M, and the detection limit was 0.2 mu M. Good selectivity and competition of TSP1 towards sulfite over several anions and biological thiols were acquired. Probe TSP1 was used to detect sulfite in three realistic samples (mineral water, sugar and white wine) with good recovery. (C) 2013 Elsevier B.V. All rights reserved.