期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 229, 期 -, 页码 257-271出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2016.01.133
关键词
Colorimetric chemosensor; Iron; Copper; Cyanide; Sequential detection
资金
- Ministry of Education, Science and Technology [NRF-2014R1A2A1A11051794, NRF-2015R1A2A2A09001301]
- National Research Foundation of Korea [2014R1A2A1A11051794, 2015R1A2A2A09001301] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
A new prototype of multifunctional chemosensor 1 has been synthesized for Fe2+/3+, Cu2+ and CN- in aqueous solution. This sensor could simultaneously detect biologically important metal ions (iron and copper) through colorimetric methods over most other competitive cations. The detection limit (2.9 mu M) of 1 for Cu2+ is lower than WHO guideline (31.5 mu M) in drinking water. Interestingly, the resulting 1-Cu2+ complex sensed cyanide in colorimetric and fluorometric ways, showing recovery from 1-Cu2+ to 1, over other common interference anions. These results demonstrate a novel type of versatile chemosensor for multiple target ions using two different sensing methods, simple colorimetric and sequential detections. (C) 2016 Elsevier B.V. All rights reserved.
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