A fungus-derived biomass porous carbon-MnO 2 nanocomposite-modified electrode for the voltammetric determination of rutin.
Hui ChengJuan LiuYunxiu SunTing ZhouQiuyue YangShuyao ZhangXiaoping ZhangGuangjiu LiWei SunPublished in: RSC advances (2020)
In this study, we designed a simple procedure for the synthesis of fungus-derived biomass porous carbon (FBPC), which was further used to prepare a MnO 2 @FBPC composite by a hydrothermal method. The MnO 2 @FBPC nanocomposite showed a porous structure, large specific surface area, and high conductivity, and was modified on the carbon ionic liquid electrode (CILE) to obtain a working electrode for the sensitive voltammetric determination of rutin. The electrochemical response of rutin was studied via cyclic voltammetry with electrochemical parameters calculated. Under the optimal conditions, the linear range for the rutin analysis was obtained by the differential pulse voltammetry from 0.008 to 700.0 μmol L -1 with the detection limit of 2.67 nmol L -1 (3 σ ). This MnO 2 @FBPC/CILE was applied to directly detect the rutin concentration in drug and human urine samples with satisfactory results.
Keyphrases
- ionic liquid
- molecularly imprinted
- solid phase extraction
- carbon nanotubes
- reduced graphene oxide
- gold nanoparticles
- highly efficient
- label free
- anaerobic digestion
- endothelial cells
- metal organic framework
- wastewater treatment
- room temperature
- quantum dots
- blood pressure
- risk assessment
- tandem mass spectrometry
- emergency department
- minimally invasive
- mass spectrometry
- high resolution
- heavy metals
- loop mediated isothermal amplification