The first voltammetric investigation for astilbin based on β-cyclodextrin functionalized graphene modified electrode

[摘要] In this study, the electrochemical properties of astilbin were investigated for the first time and an electroanalytical method was established synchronously, which was based on a β-cyclodextrin–graphene nanocomposite modified electrode (β-CD–GNs/GCE). The electrode process of astilbin was investigated in detail, and some dynamic parameters were calculated. The detecting sensitivity of astilbin was greatly enhanced at this voltammetric sensor. Under optimum conditions, a lower detection limit (1 × 10−8 mol L−1) and wider linear range (3.0 × 10−8 mol L−1 to 2.0 × 10−6 mol L−1) were achieved by the proposed sensor. Finally, the proposed method was applied to the analysis of a real sample, and the results showed that the method was applicable and reliable.

[学科分类] 分析化学