电化学
电极
三元运算
纳米复合材料
电化学气体传感器
材料科学
鸟苷
钌
选择性
线性范围
电催化剂
无机化学
化学工程
核化学
检出限
化学
纳米技术
催化作用
有机化学
色谱法
物理化学
工程类
生物化学
程序设计语言
计算机科学
作者
Ying Yu,Xiaodan Wang,Mingyang Li,Dengyong Liu
出处
期刊:Food Chemistry
[Elsevier]
日期:2023-08-01
卷期号:418: 135841-135841
被引量:1
标识
DOI:10.1016/j.foodchem.2023.135841
摘要
5'-Guanosine monophosphate (5'-GMP) is one main source of freshness in broths. Herein, an electrochemical platform based on a novel ternary nanocomposite glassy carbon electrode modified with advantageously-united gold nanoparticles, 2,2'-bipyridine hydrated ruthenium (Ru(bpy)2Cl2) and sulfonated multi-walled carbon nanotubes (SMWCNTs)was prepared and used to detect 5'-GMP. After conditions optimization, the best performance of the electrochemical sensor was found in acidic media, including high specificity, sensitivity and selectivity. The electrochemical sensor exhibited a wide linear range under the optimal conditions. The enhanced sensitivity of this sensor was attributed to the Ru(bpy)2Cl2 and functionalized SMWCNTs that provided high electrical conductivity and electrocatalytic properties during electrochemical reaction. Precise analysis of 5'-GMP in actual broth samples showed satisfactory recovery. Thus, the sensor can be used in the market and food enterprises.
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