Colorimetric test kit for Cu2+ detection |
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| Authors: | Sheng Ruilong Wang Pengfei Gao Yunhua Wu Yan Liu Weimin Ma Jingjin Li Huaping Wu Shikang |
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| Institution: | Laboratory of Organic Optoelectronic Functional Materials and Molecular Engineering, Technical Institute of Physics and Chemistry, the Chinese Academy of Sciences, Beijing, 100190, China. |
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| Abstract: | A coumarin-based colorimetric chemosensor 1 was designed and synthesized. It exhibits good sensitivity and selectivity for the copper cation over other cations such as Zn(2+), Cd(2+), Pb(2+), Co(2+), Fe(2+), Ni(2+), Ag(+), and alkali and alkaline earth metal cations both in aqueous solution and on paper-made test kits. The change in color is very easily observed by the naked eye in the presence of Cu(2+) cation, whereas other metal cations do not induce such a change. The quantitative detection of Cu(2+) was preliminarily examined. |
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