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2D Accordion‐like MXene Nanosheets as a Sensitive Electrode Material for Baicalin Sensing
Author(s) -
Shi YanMei,
Zhang Xi,
Mei Lin,
Hu Kai,
Chao LiQin,
Li XiuMin,
Miao MingSan
Publication year - 2021
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.202060535
Subject(s) - baicalin , electrode , materials science , cyclic voltammetry , detection limit , nanotechnology , adsorptive stripping voltammetry , electrochemistry , voltammetry , chemical engineering , chemistry , chromatography , high performance liquid chromatography , engineering
Herein, accordion‐like MXene nanosheets was used as electrode sensing material for baicalin determination in traditional Chinese medicine preparation for the first time. The consecutive multilayer nanostructure of MXene observably enhanced the electroactive surface area of electrode and accelerated the electron transfer rate to acquire outstanding electrochemical response to baicalin. The electrode process of baicalin and relative dynamic parameters were investigated using cyclic voltammetry and chronocoulometry. Under optimized conditions, a good linear relationship was achieved between the response current and baicalin levels over the range of 0.08–60 μM with a detection limit of 26 nM (S/N=3). The developed sensor was successfully applied for baicalin monitoring in traditional Chinese medicine preparation and human urine samples.