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首页> 外文期刊>International Journal of Electrochemical Science >Electrochemical Determination of Rutin Using SnO2itrogen- doped Graphene Composite Electrode
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Electrochemical Determination of Rutin Using SnO2itrogen- doped Graphene Composite Electrode

机译：SnO 2 /氮掺杂石墨烯复合电极电化学测定芦丁

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Herein, the nanocomposites of SnO 2 nanoparticles on the nitrogen-doped graphene (SnO 2 /NG) as asensitive electrochemical sensing platform for rutin determination were easily prepared via a facilehydrothermal method. The results showed that the existence of NG in SnO 2 /NG composites coulddramatically improve the conductivity, facilitate the electron transfer and enhance the electro-catalyticactivity of rutin. Compared with pure SnO 2 , NG and SnO 2 /graphene, the as-prepared SnO 2 /NGnanocomposite presented improved electrocatalytic activity for the oxidation of rutin due to thesynergetic effects from SnO 2 and NG. Combined with differential pulse voltammetry, the preparedsensor based on SnO 2 /NG modified electrode displayed a wide linear range from 0.4 nM to 2 μM witha detection limit of 0.2 nM. The modified electrode exhibited high stability and reproducibility as wellas good selectivity. These results suggest that SnO 2 /NG could be successfully applied for detectingrutin in practical samples.
机译：在此，通过简便的水热法可以容易地制备作为用于芦丁测定的灵敏的电化学传感平台的氮掺杂石墨烯（SnO 2 / NG）上的SnO 2纳米颗粒的纳米复合材料。结果表明，SnO 2 / NG复合材料中NG的存在可以显着提高电导率，促进电子传递，增强芦丁的电催化活性。与纯SnO 2，NG和SnO 2 /石墨烯相比，由于SnO 2和NG的协同作用，制备的SnO 2 / NG纳米复合材料对芦丁的氧化具有改善的电催化活性。结合差分脉冲伏安法，所制备的基于SnO 2 / NG修饰电极的传感器显示出0.4 nM至2μM的宽线性范围，检测极限为0.2 nM。改性电极表现出高稳定性和可再现性以及良好的选择性。这些结果表明，SnO 2 / NG可以成功地用于实际样品中芦丁的检测。

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