Smartphone-based electrochemical sensor for cost-effective, rapid and on site detection of chlorogenic acid in herbs using biomass-derived hierarchically porous carbon synthesized by a soft-hard dual template method

被引：13

作者：

Jiang, Wanjun ^{[1
]}

Zhuo, Zhonghui ^{[1
]}

Zhang, Xiaohua ^{[2
]}

Luo, Hai ^{[1
]}

He, Lu ^{[1
]}

Yang, Yuling ^{[1
]}

Wen, Yangping ^{[2
]}

Huang, Zhong ^{[2
]}

Wang, Peng ^{[1
]}

机构：

[1] Jiangxi Agr Univ, Coll Forestry, East China Woody Fragrance & Flavor Engn Res Ctr N, Nanchang 330045, Peoples R China

[2] Jiangxi Agr Univ, Inst Funct Mat & Agr Appl Chem, Key Lab Chem Utilizat Plant Resources Nanchang, Nanchang 330045, Peoples R China

来源：

FOOD CHEMISTRY | 2024年 / 431卷

基金：

中国国家自然科学基金;

关键词：

Chlorogenic acid; Electrochemical sensor; Hierarchically porous carbon; Lonicera japonica; Eucommia ulmoides; VOLTAMMETRIC SENSOR; PERFORMANCE;

D O I：

10.1016/j.foodchem.2023.137165

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

To achieve excellent germplasm resource screening and ensure the quality control of herbal tea raw material, it is important to establish a cost-effective, rapid, and on site quantitative detection method for their bioactive constituents. We developed a smartphone-operated sensor for electrochemical detection of chlorogenic acid (CGA) using hierarchically porous carbon (DSiFPC), synthesized through a soft-hard dual template strategy with tannin acid as a carbon source, silica colloid as a hard template, and Pluronic F127 as a soft template. The DSiFPC modified glassy carbon electrode sensor showed excellent electrocatalytic ability towards CGA, with a wide linear range of 0.03-1 mu M and a low limit of detection of 6.2 nM. It was successfully applied for detecting CGA in dried flowers of Lonicera japonica. Furthermore, a portable sensor utilizing a DSiFPC modified screen-printed electrode was employed for on site detection of CGA in fresh Eucommia ulmoides leaves, yielding satisfactory recoveries.

引用

页数：8