A detailed investigation for determination of tannic acid by anodic stripping voltammetry using porous electrochemical sensor.
A detailed investigation for determination of tannic acid by anodic stripping voltammetry using porous electrochemical sensor.
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DOI：
10.1016/j.aca.2008.12.029
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发表时间：
2009-02
影响因子：
6.2
通讯作者：
Lijian Xu;N. He;Jingjing Du;Yan Deng;Zhiyang Li;Ting Wang
中科院分区：
文献类型：
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作者：
Lijian Xu;N. He;Jingjing Du;Yan Deng;Zhiyang Li;Ting Wang
在相同条件下，研究了单宁酸在多孔伪碳糊电极(PPCPE)、聚吡咯修饰碳糊电极(PCPE)、SBA-15修饰碳糊电极(SBA-MCPE)和碳糊电极(CPE)上的电化学响应。结果表明，PPCPE电极的灵敏度最高。PPCPE的检出限为0.01MCPE，比CPE低约10倍，比PCPE或SBA-μ-MCPE低约5倍。研制的PPCPE电极具有一些明显的优点，且不需要结合剂。聚氯乙烯的比表面积为59.26m2g−1，孔径为2~5μm。PPCPE易于保存，具有良好的重复使用性，为单宁酸的检测提供了良好的电化学平台。
The electrochemical responses of tannic acid have been obtained at porous pseudo-carbon paste electrode (PPCPE), polypyrrole modified carbon paste electrode (PCPE), SBA-15 modified CPE (SBA-MCPE) and carbon paste electrode (CPE) under same conditions, respectively. The results show that the sensitivity of PPCPE is the highest among all the checked electrodes. The detection limit at PPCPE is 0.01μM, which is about 10 times lower than that at CPE and is about 5 times lower than that at PCPE or SBA-MCPE. The developed electrode PPCPE possesses a few obvious advantages and no binding reagents are needed. The surface area of PPCPE is 59.26m2g−1with pores ranging from 2 to 5μm in diameter. The PPCPE is easy to preserve and has good reusability, which affords a nice electrochemical platform for detecting tannic acid.