期刊
ELECTROCHIMICA ACTA
卷 263, 期 -, 页码 382-390出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2018.01.059
关键词
2,2'-(ethane-1,2-diylbis((2-(azulen-2-ylamino)-2-oxoethyl)azanediyl))diacetic acid; Colorimetric sensor; Electropolymerization; Chemically modified electrodes; Heavy metal ions complexation
资金
- Romanian National Authority for Scientific Research, UEFISCDI [PN-II-RU-TE-2014-4-0594, 10/2015]
A new synthesized molecular receptor, 2,2'-(ethane-1,2-diylbis((2-(azulen-2-ylamino)-2-oxoethyl)azanediyl))diacetic acid (L) has been used as building block for the development of new colorimetric and electrochemical sensors for metal ions complexation. The monomer L shows a high selectivity towards mercury ions among other cations, as highlighted by naked eye and UV-Vis spectra. The oxidative electropolymerization of L on glassy carbon electrodes lead to complexing polyL coated electrodes. They have been characterized by electrochemical techniques, their surface morphology and topography being evaluated by scanning electron microscopy and atomic force microscopy. These new modified electrodes show the ability to complex metal ions using chemical preconcentration-anodic stripping voltammetry technique. (c) 2018 Elsevier Ltd. All rights reserved.
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