A new fluorescent chemosensor for Hg2+ in aqueous solution |
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| Authors: | Duong Tuan Quang Nguyen Van Hop Nguyen Dinh Luyen Ha Phuong Thu Doan Yen Oanh Nguyen Khoa Hien Nguyen Van Hieu Min Hee Lee Jong Seung Kim |
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| Institution: | 1. Department of Chemistry, Hue University, , Hue, 8454 Vietnam;2. Vietnam Academy of Science and Technology, , Hanoi, 844 Vietnam;3. Institute of Natural Resources, Environment and Sustainable Development, , Hue, 8454 Vietnam;4. International Training Institute for Materials Science (ITIMS), Hanoi University of Science and Technology (HUST), , Hanoi, 844 Viet Nam;5. Department of Chemistry, Korea University, , Seoul, 136‐701 Korea |
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| Abstract: | We prepared an aminothiourea‐derived Schiff base (DA) as a fluorescent chemosensor for Hg2+ ions. Addition of 1 equiv of Hg2+ ions to the aqueous solution of DA gave rise to an obvious fluorescence enhancement and the subsequent addition of more Hg2+ induced gradual fluorescence quenching. Other competing ions, including Pb2+, Cd2+, Cr3+, Zn2+, Fe2+, Co3+, Ni2+, Ca2+, Mg2+, K+ and Na+, did not induce any distinct fluorescence changes, indicating that DA can selectively detect Hg2+ ions in aqueous solution. Copyright © 2012 John Wiley & Sons, Ltd. |
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| Keywords: | Schiff base fluorescent chemosensor Hg2+ determination aqueous solution |
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