East China University of Science and Technology;
Shanghai Key Laboratory of Functional Materials Chemistry;
School of Chemistry and Molecular Engineering;
200083;
200237;
Shanghai;
Center of Material Evidence Identification;
Shanghai Key Laboratory of Scene Material Evidence;
China;
Shanghai Public Security Bureau;
关键词：
identification;
coumarin-based;
fluorescent;
期刊名称：
The Analyst: The Analytical Journal of the Royal Society of Chemistry: A Monthly International Publication Dealing with All Branches of Analytical Chemistry
i s s n：
0003-2654
年卷期：
2014 年
139 卷
13 期
页 码：
3373-3377
页 码：
摘 要：
Sulfite and sulfide share several similarities in terms of chemical properties, such as nucleophilic and reducing reactivities. Therefore, they may disturb the detection of each other. In order to discriminate between these two kinds of sulfur-containing species, a new probe TSSP-N_3 was developed, in which para-azidobenzenyl ketone was covalently incorporated to a coumarin fluorophore linked by a C=C double bond. Sulfite and sulfide can respectively react with the C=C double bond and the azido group to give different products, consequently, they can be differentially identified by UV-vis and fluorescence spectroscopy as well as by the naked eye. Selectivity and competition results reveal that TSSP-N_3 is a good candidate for the detection of sulfide and sulfite. The bioimaging experiment demonstrates the potential of the TSSP-N_3 probe for the differential imaging of sulfide and sulfite in living cells.
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