Electrochemical Investigations of Dopamine at Chemically Modified Losartan Carbon Paste Electrode: A Cyclic Voltammetric Study

M.T. Shreenivas; B.E.Kumara Swamy; Umesh Chandra; S.Sharath Shankar; J.G.Manjunatha; B.S.Sherigara

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Electrochemical Investigations of Dopamine at Chemically Modified Losartan Carbon Paste Electrode: A Cyclic Voltammetric Study

机译：化学修饰的氯沙坦碳糊电极上多巴胺的电化学研究：循环伏安法研究

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A carbon paste electrode modified by Losartan was used for detection of dopamine (DA). Themodified electrode exhibited strong promoting effect and stability towards the electrochemicaloxidation of DA in phosphate buffer solution (PBS) at pH 7.0. The effects of scan rate, concentration,-7and pH have been studied. The detection limit of the modified carbon paste electrode was 1 x 10 Mfor dopamine. The preparation of the modified electrode is very easy and renewed by simple polishinggave very good reproducibility, high stability in its voltammetric response and low detection limit forDA.

机译：使用Losartan改性的碳糊电极用于检测多巴胺（DA）。修饰的电极在pH 7.0的磷酸盐缓冲溶液（PBS）中对DA的电化学氧化具有很强的促进作用和稳定性。研究了扫描速率，浓度，-7和pH的影响。修饰的碳糊电极的检测极限对于多巴胺为1 x 10M。修饰电极的制备非常容易，并且可以通过简单的抛光进行更新，从而具有很好的重现性，伏安响应的高稳定性以及对DA的低检测限。

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《International Journal of Electrochemical Science》 |2010年第6期|共8页
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M.T. Shreenivas; B.E.Kumara Swamy; Umesh Chandra; S.Sharath Shankar; J.G.Manjunatha; B.S.Sherigara;
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Electrochemical Investigations of Dopamine at Chemically Modified Losartan Carbon Paste Electrode: A Cyclic Voltammetric Study

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