一种基于双硫醚转化为醛的新型Hg^(2+)荧光探针  

A novel fluorescent probe for Hg^(2+)based on the conversion of dithiane to aldehyde

作　　者：耿翠翠 焦书燕 孔路明 贾旭 徐红辉 陈士强 GENG Cuicui;JIAO Shuyan;KONG Luming;JIA Xu;XU Honghui;CHEN Shiqiang(Henan Institute of Metallurgy Co.Ltd.,Zhengzhou 450053,Henan,China;School of Material and Chemical Engineering,Zhongyuan University of Technology,Zhengzhou 451191,Henan,China;Research Center of Carbon Emission Reduction and Utilization Engineering Technology,Henan Academy of Sciences,Zhengzhou 450053,Henan,China)

机构地区：[1]河南省冶金研究所有限责任公司,河南郑州450053 [2]河南省科学院碳减排与利用工程技术研究中心,河南郑州450053 [3]中原工学院,河南郑州451191

出　　处：《化学研究》2023年第1期64-70,共7页Chemical Research

基　　金：The Special Fund for Scientific Research and Development of Henan Academy of Sciences(200610096)。

摘　　要：报道了一种新型的易于合成的反应型Hg^(2+)荧光探针,根据汞离子可以使缩硫醛脱保护生成相应醛的设计合成了一个二硫醇衍生物荧光探针,在乙腈-柠檬酸缓冲溶液中,Hg^(2+)使探针发生了明显的荧光光谱变化。荧光光谱实验结果表明,探针对Hg^(2+)表现出较强的选择性和抗干扰能力。探针对Hg^(2+)的检测限达到了5.7×10^(-7)mol/L。其识别机理通过核磁、荧光和质谱等方法验证。同时探针成功地应用于自来水中Hg^(2+)的检测。An easily synthesized reaction-based probe for the fluorescence detection of Hg^(2+)ions using a dithiane derivative were reported.The designed probe exhibited prominent fluorescence response towards Hg^(2+) ions via the deprotection of the dithiane function to aldehyde in aqueous acetonitrile solution.The probe showed exclusive Hg^(2+)-selective capability in the presence of common environmentally relevant transition metal ions in citrate buffer allowed.The detection limit of probe HgL towards Hg^(2+)was calculated to be as low as 5.7×10^(-7)mol·L^(-1).The recognition mechanism was confirmed by fluorescence measurements,^(1)H NMR and mass spectroscopy.Moreover,the probe HgL has been successfully used to rapidly detect trace amounts of hazardous Hg^(2+)ions in tap water with acceptable results and good recoveries.

关 键 词：Hg^(2+) 反应型荧光探针 二硫醇去保护 自来水 

分 类 号：O62[理学—有机化学]