期刊
ANALYTICA CHIMICA ACTA
卷 943, 期 -, 页码 50-57出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.aca.2016.09.017
关键词
Solid-contact ion selective electrode; Conducting polymer; Calcium ions; Blood serum
资金
- Spanish Ministry of Economy and Competitiveness - European Regional Development Fund [CTQ2014-54553-C3-1-R]
- Government of Russian Federation [074-U01]
- People Programme (Marie Curie Actions) of the 7th Framework Programme of the European Union (FP7) under REA grant [600388]
- Agency for Business Competitiveness of the Government of Catalonia (ACCIO)
A new solid contact ion selective electrode with intermediate conducting polymer (CP) layer formed by electropolymerization on a gold electrode of a bifunctional monomer, n-phenyl-ethylenediamine-methacrylamide (NPEDMA), which contains a methacrylamide group attached to aniline, is presented. The conducting polymer was studied by means of optical spectroscopy, cyclic voltammetry and potentiometric measurements. Ca2+ -ion-selective membrane based on acrylated urethane polymer was shown to co-polymerize with the CP forming highly adhesive boundary that prevents formation of water layers between the CP and membrane, thus enhancing the stability and life-time of the sensor. The designed ion-selective electrode was successfully used for determination of total calcium ion concentration in blood serum samples. (C) 2016 Elsevier B.V. All rights reserved.
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