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中文摘要：
制备了电活化玻碳电极,并考察香兰素在该电极上的电化学行为。在优化的实验条件下,香兰素在该电极上有良好的电化学响应,其浓度在1.0×10-6～2.0×10-4mol.L-1范围内与氧化峰电流呈良好的线性关系。检测限（S/N=3）为6.7×10-7 mol.L-1。香兰素于电活化玻碳电极表面发生的电极反应是扩散控制的2电子2质子转移过程。该方法操作简便,重现性较好,并应用此法分析了巧克力中香兰素的含量。
英文摘要：
An electro-ac excellent electrocatalytic controlled, two obtained in the tivated glassy carbon electrode （EGCE） was fabricated. The EGCE showed activity towards the oxidation of vanillin. The results exhibited a diffusion proton and two electron transfer reaction concentratl The detection limit was 6 prepared with good reprod in chocolate samples with by cyclic voltammetry. And good linearity was on range of 1.0× 10-6-2.0× 10-4 mol. L^-1 under the optimum operations. 7 × 10-7 mol, L-1. The activated glassy carbon electrode was easy to be ueibility. The method was successfully applied to the determination of vanillin satisfied recovery
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