| 纳米铜/石墨烯-壳聚糖复合膜修饰电极及其对葡萄糖的直接测定 |
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| 基金项目:山东省自然科学基金项目(ZR2015BL003)；山东省高等学校科技计划项目(J14LC19) |
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| 中文摘要:以石墨烯-壳聚糖复合膜修饰玻碳电极，并在此复合膜上电沉积纳米铜，用于葡萄糖的无酶检测。以扫描电镜、傅立叶红外光谱及电化学交流阻抗谱对该复合膜微观形态进行表征，以循环伏安法、计时电流法对该电极的电化学行为进行研究。实验结果表明，在0.1 mol/L NaOH溶液中修饰电极对葡萄糖具有良好的催化氧化作用，该电极对葡萄糖的检测线性范围为5.6×10-5~1.2×10-3 mol/L，检出限(S/N=3)为2.3×10-5 mol/L。该修饰电极对样品的检测具有良好的稳定性、重现性。 |
| 中文关键词:纳米铜 石墨烯-壳聚糖复合膜 修饰电极 葡萄糖 |
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| Preparation of Nano-copper/Graphene-Chitosan Composite Membrane Modified Electrode and Its Direct Determination of Glucose |
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| Abstract:The enzyme-free detection of glucose was achieved by using the nano-copper/graphene-chitosan composite matrix modified glass carbon electrode.The microstructure of the composite matrix was characterized by scanning electron microscopy(SEM),FT-IR spectrum and electrochemical impedance spectroscopy(EIS).The electrochemistry behavior of the modified electrode was investigated by cyclic voltammetry and chronoamperometry.The results showed that the modified electrode exhibited a good catalytic oxidation of glucose in 0.1 mol/L NaOH and with a wide linear range of 5.6×10-5-1.2×10-3 mol/L and a low detection limit of 2.3×10-5 mol/L(at signal/noise ratio S/N = 3).The modified electrode could be used to detect the real samples with a good stability and repeatability. |
| Key Words:nano-copper graphene-chitosan composite membrane modified electrode glucose |
| 引用本文：潘芊秀，程远征，王江云，张凤莲，邓树娥.纳米铜/石墨烯-壳聚糖复合膜修饰电极及其对葡萄糖的直接测定[J].分析测试学报,2017,36(9):1145-1149. |
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