基于简单席夫碱的用于快速检测银、铜和汞的高选择性和灵敏比色及荧光化学传感器
Highly Selective and Sensitive Colorimetric and Fluorescent Chemosensor for Rapid Detection of Ag, Cu and Hg Based on a Simple Schiff Base.
作者信息
Zhang Shanshan, Wu Xingxing, Niu Qingfen, Guo Zongrang, Li Tianduo, Liu Haixia
机构信息
Shandong Provincial Key Laboratory of Fine Chemicals, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology, Jinan, 250353, People's Republic of China.
出版信息
J Fluoresc. 2017 Mar;27(2):729-737. doi: 10.1007/s10895-016-2005-y. Epub 2016 Dec 19.
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, Cu and Hg ions with a short response time in DMSO/HO (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/Hg/Cu has been determined to be 1:2 by Job's plot and FT-IR analysis. MMIP could effectively detect Ag, Cu and Hg over a wide pH range of 3-10. The good linear correlations were obtained in the concentration ranges of 0-20 μM for Ag, Cu and Hg. Thus sensor MMIP could be potentially used for the quantification of Ag, Cu and Hg in aqueous solution.
一种基于简单席夫碱的新型可逆比色和荧光化学传感器MMIP已成功合成。在各种金属离子中，MMIP在DMSO/H₂O（1/1，v/v）溶液中对Ag⁺、Cu²⁺和Hg²⁺离子表现出高选择性和敏感性，响应时间短，结果可直接用肉眼监测。通过Job曲线和傅里叶变换红外光谱（FT-IR）分析确定MMIP与Ag⁺/Hg²⁺/Cu²⁺之间的结合化学计量比为1:2。MMIP在3-10的宽pH范围内能有效检测Ag⁺、Cu²⁺和Hg²⁺。在0-20 μM的Ag⁺、Cu²⁺和Hg²⁺浓度范围内获得了良好的线性相关性。因此，传感器MMIP有可能用于定量水溶液中的Ag⁺、Cu²⁺和Hg²⁺。
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