Determination of Rutin on the Poly(p-aminobenzene sulfonic acid) Modified Glassy Carbon Electrode
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概要
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The electrochemical behaviors of rutin at a poly(p-aminobenzene sulfonic acid) modified glassy carbon electrode (PABSA/GC) have been investigated. Rutin can generate a pair of well-defined redox peaks at the PABSA/GC located at 0.440 V (Epa) and 0.396 V (Epc) (vs. saturated calomel electrode (SCE)), respectively. The results indicate that the reaction involves two electrons transfer, accompanied by two protons and the electrochemical process is controlled by adsorption. The electrochemical parameters of rutin on the modified electrode were calculated with the results of the charge transfer coefficient (α), the number of electron transfer (n) and the electrode reaction rate constant (ks) as 0.61, 2.08 and 2.18 s−1, respectively. Under the selected conditions, the oxidation peak current was linear to the rutin concentration over the range of 2.5×10−7—1.0×10−5 M with a detection limit of 1.0×10−7 M. The proposed method has been successfully applied to the determination of compound rutin tablets with no interference from the coexisting ascorbic acid.
著者
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Chen Xiaoyin
Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, Qingdao
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Wang Zonghua
Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, Qingdao
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Zhang Feifei
Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, Qingdao
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Zhu Lingyan
Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, Qingdao
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Li Yanhui
Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, Qingdao
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Xia Yanzhi
Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, Qingdao
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Wang Zonghua
Laboratory Of Fiber Materials And Modern Textile The Growing Base For State Key Laboratory Qingdao U
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Li Yanhui
Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, Qingdao University
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Zhang Feifei
Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, Qingdao University
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Zhu Lingyan
Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, Qingdao University
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Chen Xiaoyin
Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, Qingdao University
関連論文
- Determination of Rutin on the Poly(p-aminobenzene sulfonic acid) Modified Glassy Carbon Electrode
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