A highly selective colorimetric sensor for Hgbased on a copper （Ⅱ） complex of thiosemicarbazone in aqueous solutions

被引：0
|
作者：
WEI TaiBao [1 ,2 ,3 ]
LI JunJian [1 ,2 ,3 ]
BAI CuiBing [1 ,2 ,3 ]
LIN Qi [1 ,2 ,3 ]
YAO Hong [1 ,2 ,3 ]
XIE YongQiang [1 ,2 ,3 ]
ZHANG YouMing [1 ,2 ,3 ]
机构：
[1] Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China
[2] Key Laboratory of Polymer Materials of Gansu Province
[3] College of Chemistry and Chemical Engineering, Northwest Normal
来源：
Science China(Chemistry) | 2013年 / 07期
关键词：
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中图分类号：
O657.3 [光化学分析法（光谱分析法）];
学科分类号：
摘要：
By applying an indirect strategy, a new copper (Ⅱ) complex of a thiosemicarbazone L has been successfully developed as a colorimetric chemosensor for the sensitive detection of mercury (Ⅱ) ions. In the presence of copper (Ⅱ) ions, the colorless solution of L became yellow; however, upon the addition of traces of mercury (Ⅱ) ions, the yellow color faded to colorless immediately. Other ions, including Fe3+ , Ag+ , Ca2+ , Zn2+ , Pb2+ , Cd2+ , Ni2+ , Co2+ , Cr3+ and Mg2+ had a negligible influence on the probe behavior. The detection limits were 5.0×10 -6 M and 3.0×10 -7 M of Hg2+ using the visual color changes and UV-vis changes respectively. Test strips based on Cu-L were fabricated, which could act as a convenient and efficient Hg2+ test kits.
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页码：923 / 927
页数：5
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