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首页> 外文期刊>International Journal of Electrochemical Science >NiO/CNTs Nanocomposite Modified Ionic Liquid Carbon Paste Electrode as a Voltammetric Sensor for Determination of Quercetin
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NiO/CNTs Nanocomposite Modified Ionic Liquid Carbon Paste Electrode as a Voltammetric Sensor for Determination of Quercetin

机译：NiO / CNTs纳米复合修饰的离子液体碳糊电极作为伏安法测定槲皮素的方法

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摘要

A high sensitive carbon paste electrode modified with NiO/CNTs and ionic liquid(ILs/NiO/CNT/CPE) was describe for voltammetric determination of quercetin. Compared tounmodified carbon paste electrode, the electrochemical response was greatly improved for quercetinelectrooxidation. Result shows, the oxidation peak current was increased to about 6.5 times at thesurface of ILs/NiO/CNT/CPE compared to CPE. The linear response range and detection limit werefound to be 0.0800 M and 0.03 M, respectively. ILs/NiO/CNT/CPE was successfully applied forthe determination of quercetin in real samples such as onions, apple and capsule. The results showedthat the proposed method is highly selective, sensitive with a fast response for quercetin analysis.
机译：介绍了一种用NiO / CNTs和离子液体（ILs / NiO / CNT / CPE）修饰的高灵敏度碳糊电极，用于伏安法测定槲皮素的方法。与未修饰的碳糊电极相比，槲皮素电氧化的电化学响应得到了极大的改善。结果表明，与CPE相比，ILs / NiO / CNT / CPE表面的氧化峰值电流增加到约6.5倍。线性响应范围和检测极限分别为0.0800 M和0.03M。 ILs / NiO / CNT / CPE成功地用于测定洋葱，苹果和胶囊等真实样品中的槲皮素。结果表明，该方法具有较高的选择性，对槲皮素的分析反应灵敏。

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