College of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, 450001, China.
College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, 450001, China.
Anal Chim Acta. 2020 Feb 22;1099:85-93. doi: 10.1016/j.aca.2019.11.057. Epub 2019 Nov 29.
MoS and nitrogen doped active carbon composite (MoS/ANC) is fabricated to detect taxifolin and exhibits superior redox current response and decreased redox potential difference. Further investigation reveals that the kinetic process of the redox reaction of taxifolin on MoS/ANC electrode is controlled by both adsorption and diffusion process. Under the optimum conditions, the redox peak currents linearly relate with the concentration of taxifolin in the range of 1 × 10-1 × 10 mol L, accompanied by the low detection limit (3 × 10 mol L). Meanwhile, outstanding selectivity, stability and repeatability are also obtained at MoS/ANC electrode. At last, the proposed method is applied to quantitatively detect taxifolin in fructus polygoni orientalis and satisfactory results have been achieved.
MoS 和氮掺杂活性碳复合材料 (MoS/ANC) 被制备用于检测二氢杨梅素，表现出优异的氧化还原电流响应和降低的氧化还原电位差。进一步的研究表明，二氢杨梅素在 MoS/ANC 电极上的氧化还原反应的动力学过程受吸附和扩散过程的共同控制。在最佳条件下，氧化还原峰电流在 1×10-1×10 mol L 的范围内与二氢杨梅素的浓度呈线性关系，同时检测限低至 3×10 mol L。此外，在 MoS/ANC 电极上还获得了出色的选择性、稳定性和重现性。最后，该方法被应用于定量检测藤茶中二氢杨梅素，获得了令人满意的结果。
