Selective electrochemical recognition of ions in solution and at self-assembled monolayers
- Authors
- Park, Jongseo; Kang, Sun Kil; Chung, Taek Dong; Chang, Suk-Kyu; Kim, Hasuck
- Issue Date
- Mar-2001
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- calix[4]arenes; electrochemical recognition; self-assembled monolayers; voltammetry; determination of calcium ion
- Citation
- MICROCHEMICAL JOURNAL, v.68, no.2-3, pp 109 - 113
- Pages
- 5
- Journal Title
- MICROCHEMICAL JOURNAL
- Volume
- 68
- Number
- 2-3
- Start Page
- 109
- End Page
- 113
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/43668
- DOI
- 10.1016/S0026-265X(00)00136-3
- ISSN
- 0026-265X
1095-9149
- Abstract
- Quinone-functionalized calix[4]arenes having carboxylic acid groups or thiol groups were prepared and their spontaneous adsorption on silver and gold surfaces, respectively, was studied. Since the cavity-like structure of calixarenes was immobilized on the noble metal electrodes, they exhibited a selective affinity towards specific hard metal ions in aqueous media. Voltammetric and spectroscopic studies showed the well-ordered deposition of organic receptors and entrapment of metal ions. It also was found that the repeated capture and removal of metal ions reversibly with chelating agents such as ethylenediaminetetraacetic acid (EDTA) was possible. This is the first example, to our knowledge, of voltammetric detection of hard metal ions in aqueous media using a chemically modified electrode with redox-active macrocyclic receptors. (C) 2001 Elsevier Science B.V. All rights reserved.
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Collections - College of Natural Sciences > Department of Chemistry > 1. Journal Articles
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