Abstract: A layer of poly(3,4-ethylenedioxythiopene)(PEDOT) is deposited onto a glassy carbon electrode by means of cyclic voltammetry method and then multiwall carbon nanotubes (MWCNT) are coated on the prepared electrode surface to obtain a composite film modified electrode (MWCNT-PEDOT-GCE).The electrochemical behavior of bisphenol A (BPA) on the modified electrode is studied by cyclic voltammetry method.It is found that BPA presents an irreversible oxidation peak on MWCNT-PEDOT-GCE when it is in phosphate buffer solution with a pH of 7.0.This peak current has a good linearity with the concentration of BPA in the range of 0.051 μmol·L-1 to 4.121 μmol·L-1.The general linear relationship is I=22.72c+4.19,R2=0.994,with a detection limit of 0.024 μmol·L-1.The results indicate that the prepared modified electrode enhances the electrochemical signal of BPA,and the prepared composite electrode has good stability and reproducibility.
张胜健, 李敏, 王珍珍. 多壁碳纳米管-PEDOT复合修饰电极的制备及对双酚A的测定[J]. 现代化工, 2019, 39(11): 216-220.
ZHANG Sheng-jian, LI Min, WANG Zhen-zhen. Preparation of MWCNT-PEDOT composite film modified glassy carbon electrode and its application in determination of BPA. Modern Chemical Industry, 2019, 39(11): 216-220.
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