期刊
ELECTROANALYSIS
卷 25, 期 5, 页码 1178-1184出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/elan.201200650
关键词
Electrochemical detection; Selectivity; Ascorbic acid; Sensors; Conducting polymers
资金
- Pusan National University
A simple detection method of ascorbic acid (AA) through selective catalytic oxidation has been developed using a novel conducting polymer poly-3-(2-aminopyrimidyl)-2,2:5,2-terthiophene (pAPTT). The pAPTT electrode showed an excellent selectivity in facilitating the electron transfer of AA and blocked the interferences of cationic species due to the positively charged pAPTT film. This method proved to be effective in the determination of AA in the presence of various biological interfering species. The dynamic range of AA detection was from 10 to 200 mu M and the detection limit was 1.4 +/- 0.06 mu M.
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