期刊
ELECTROCHEMISTRY COMMUNICATIONS
卷 12, 期 12, 页码 1738-1741出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2010.10.010
关键词
Screen-printed electrode; Ionic liquid; Cellulose acetate; Dopamine
资金
- Key Scientific Project of China [2009ZX08012-004B]
- Key Scientific Project of Zhejiang Province of China [2008C14077]
A novel screen-printing ink consisted of graphite, cellulose acetate and ionic liquid n-octylpyridinum hexafluorophosphate (OPPF) was developed and investigated. The graphite-cellulose acetate system was employed as the basic ink system, which could be easily printed onto the ploy(vinyl chloride) (PVC) substrate. With the natural viscosity and high conductivity of OPPF, the screen-printed electrode (SPE) from the OPPF modified ink exhibited very attractive properties, such as high stability and electrochemical reactivity, low background current and wide electrochemical window. Furthermore, the electrode possessed excellent electrocatalytic activity for the oxidation of dopamine. The linear range for the determination of dopamine was from 1.0 mu M to 2.5 mM and the detection limit was 0.5 mu M. (C) 2010 Elsevier B.V. All rights reserved.
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