eXPRESS Polymer Letters | |
Novel ascorbic acid sensor prepared from gold/aniline-pentamer-based electroactive polyamide composites | |
M-H. Tsai1  | |
关键词: polymer composites; electroactive polymer; electrochemical sensing; | |
DOI : 10.3144/expresspolymlett.2018.6 | |
学科分类:生物科学(综合) | |
来源: eXPRESS Polymer Letters | |
【 摘 要 】
A novel gold/aniline-pentamer-based electroactive polyamide (Au/EPA) composites that can modify carbon pasteelectrodes (CPEs) for ascorbic acid (AA) sensing has been studied in detail in this article. Cyclic voltammetry studies indicatedimproved electrochemical properties of the Au/EPA composites, demonstrating the occurrence of efficient electron/charge transfer between the Au and the EPA. Experimental tests shows that there is a linear relationship between the concentrationof added AA and the response current for the CPE modified with Au/EPA sensor to the concentration of AA in therange of 0.05–0.75 mM (R2 = 0.996, n = 15). The detection limit and the sensitivity of the Au/EPA-CPE AA sensors were2.75 μM at a signal to noise ratio (S/N) of 3, and 21.7 mA·mM–1, respectively.
【 授权许可】
CC BY
【 预 览 】
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