Highly Selective and Sensitive Colorimetric and Fluorescent Chemosensor for Rapid Detection of Ag+, Cu2+ and Hg2+ Based on a Simple Schiff Base

被引：0
|
作者：
Shanshan Zhang
Xingxing Wu
Qingfen Niu
Zongrang Guo
Tianduo Li
Haixia Liu
机构：
[1] Qilu University of Technology,Shandong Provincial Key Laboratory of Fine Chemicals, School of Chemistry and Pharmaceutical Engineering
来源：
Journal of Fluorescence | 2017年 / 27卷
关键词：
Fluorescent sensor; Colorimetric; Schiff base; Ag; Cu; Hg;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A new reversible colorimetric and fluorescent chemosensor MMIP based on a simple Schiff base has been successfully synthesized. MMIP exhibited high selectivity and sensitivity towards Ag+, Cu2+ and Hg2+ ions with a short response time in DMSO/H2O (1/1, v/v) solution among various metal ions, and the results could be monitored directly by naked eyes. The binding stoichiometry between MMIP and Ag+/Hg2+/Cu2+ has been determined to be 1:2 by Job’s plot and FT-IR analysis. MMIP could effectively detect Ag+, Cu2+ and Hg2+ over a wide pH range of 3–10. The good linear correlations were obtained in the concentration ranges of 0–20 μM for Ag+, Cu2+ and Hg2+. Thus sensor MMIP could be potentially used for the quantification of Ag+, Cu2+ and Hg2+ in aqueous solution.
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页码：729 / 737
页数：8
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