The novel voltammetric method for determination of hesperetin based on a sensitive electrochemical sensor

Publication date: 1 April 2016
Source:Talanta, Volume 150
Author(s): Junjun Wu, Lu Wang, Qinqin Wang, Lina Zou, Baoxian Ye
A highly sensitive voltammetric sensor, based on reduced graphene oxide on SWCNTs modified glassy carbon electrode (GCE), was constructed and used for sensitive detection of hesperetin. The electrochemical behavior of hesperetin at this sensor was investigated systematically and a novel voltammetric method for determination of hesperetin was proposed. The redox characters of hesperetin was discussed in detail and a reasonable reaction mechanism was proposed also. As the analytical method, the response currents were linear relationship with the hesperetin concentrations in the range of 5.0×10⁻⁸ to 3.0×10⁻⁶molL−¹, with a detection limit of 2.0×10⁻⁸molL⁻¹ (S/N=3). The method was also applied successfully to detect hesperetin in biological samples and Chinese herbal medicine Flos buddlejae with satisfactory results.

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