中文摘要：

为 /multi-walled 碳 nanotubes (MWCNT ) 修改了的 CeO2 nanoparticles (nano-CeO2 ) 的制造的一条好线路玻璃质的碳电极(GCE ) 被建议。MWCNT 被用来使 nano-CeO2 不能调动。与 MWCNT 的增加，而且， CeO2 nanoparticles 的凝块水平能被减少，极其大的表面区域能被获得，电子转移率能被增加。nano-CeO2/MWCNTs 的词法描述被扫描电子显微镜学(SEM ) 检验。nano-CeO2/MWCNTs/GCE 的表演与周期的 voltammetry (CV ) 被描绘，电气化学的阻抗光谱学(EIS ) 和典型安培计的反应(它) 。构造电极的潜在的用途被把他们用于 puerarin 集中的分析决心表明。因为 nano-CeO2 和 MWCNT 的 synergistic 效果， puerarin 的催化氧化在 nano-CeO2/MWCNTs/GCE 上有更好的结果。8.0 的察觉的优化限制 ???@

英文摘要：

A good route for the fabrication of CeO2 nanoparticles （nano-CeO2）/multi-walled carbon nanotubes （MWCNTs） modified glassy carbon electrodes （GCE） was proposed. MWCNTs are used to immobilize nano-CeO2. What＇s more, with the addition of the MWCNTs, the agglomeration level of CeO2 nanoparticles can be reduced, the extremely large surface area can be obtained and the electron transfer rate can be increased. The morphological char- acterization of nano-CeOz/MWCNTs was examined by scanning electron microscopy （SEM）. The performances of the nano-CeO2/MWCNTs/GCE were characterized with cyclic voltammetry （CV）, electrochemical impedance spectroscopy （EIS） and typical amperometric response （i-t）. The potential utility of the constructed electrodes was demonstrated by applying them to the analytical determination of puerarin concentration. The catalytic oxidation of puerarin has a better result on nano-CeOz/MWCNTs/GCE because of the synergistic effect of nano-CeO2 and MWCNTs. An optimized limit of detection of 8.0 × 10^-9 mol/L was obtained at a signal-to-noise ratio of 3 and with a fast response time （within 3 s）. Additionally, the nano-CeO2/MWCNTs/GCE exhibited a wide linear range from 0.04 to 6.0 μmol/L and high sensitivity.