A highly sensitive and selective detection of Hg2+ ion with simple salophen probe was developed. In DMSO: water (40:60, v/v) solution, Hg2+ ions coordinate with imine and shows color turn-off from yellow to colorless. Receptor 1 showed its ability for sensing Hg2+ cations sensitively through three channels: colorimetric, UV-vis and fluorescence spectroscopy. Hg2+ ions coordinate to the imine (Receptor 1) through NONO binding site forming 1:1 complex. It exhibits fluorescent 'Turn-on' behavior based on solvent polarity. The detection limit of our receptor with mercury is 1 mu g L-1. (c) 2012 Elsevier B.V. All rights reserved.
机构:
Northwest Normal Univ, Key Lab Ecoenvironm Related Polymer Mat, Minist Educ China, Lanzhou 730070, Peoples R ChinaNorthwest Normal Univ, Key Lab Ecoenvironm Related Polymer Mat, Minist Educ China, Lanzhou 730070, Peoples R China
Wei TaiBao
Li JunJian
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Li JunJian
Bai CuiBing
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Bai CuiBing
Lin Qi
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Lin Qi
Yao Hong
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Yao Hong
Xie YongQiang
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Xie YongQiang
Zhang YouMing
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机构:Northwest Normal Univ, Key Lab Ecoenvironm Related Polymer Mat, Minist Educ China, Lanzhou 730070, Peoples R China