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使用石墨烯辅助电化学传感器同时检测对乙酰氨基酚、儿茶酚和对苯二酚。

Simultaneous detection of acetaminophen, catechol and hydroquinone using a graphene-assisted electrochemical sensor.

作者信息

Wang Guofang, Zhang Siyi, Wu Qinyu, Zhu Jingzhi, Chen Suhua, Lei Yuanyuan, Li Yanmei, Yi Haomin, Chen Liyin, Shi Zi-Qi, Xiao Yi

机构信息

Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Department of Pharmacy, School of Medicine, Hunan Normal University Changsha 410013 Hunan China

Hunan Provincial Maternal and Child Health Care Hospital Changsha 410008 Hunan China.

出版信息

RSC Adv. 2022 Aug 22;12(37):23762-23768. doi: 10.1039/d2ra03900a.

DOI:10.1039/d2ra03900a
PMID:36093255
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9394483/
Abstract

Simple, rapid and sensitive analysis of drug-derived pollutants is critically valuable for environmental monitoring. Here, taking acetaminophen, hydroquinone and catechol as a study example, a sensor based on an ITO/APTES/r-GO@Au electrode was developed for separate and simultaneous determination of phenolic pollutants. ITO electrodes that are modified with 3-aminopropyltriethoxysilane (APTES), graphene (GO) and Au nanoparticles (Au NPs) can significantly enhance the electronic transport of phenolic pollutants at the electrode surface. The redox mechanisms of phenolic pollutants include the electron transfer with the enhancement of r-GO@Au. The modified ITO electrode exhibits excellent electrical properties to phenolic pollutants and a good linear relationship between ECL intensity and the concentration of phenolic pollutants, with a limit of detection of 0.82, 1.41 and 1.95 μM, respectively. The separate and simultaneous determination of AP, CC and HQ is feasible with the ITO/APTES/r-GO@Au electrode. The sensor shows great promise as a low-lost, sensitive, and rapid method for simultaneous determination of drug-derived pollutants.

摘要

对药物衍生污染物进行简单、快速且灵敏的分析对于环境监测至关重要。在此，以对乙酰氨基酚、对苯二酚和邻苯二酚为例，开发了一种基于ITO/APTES/r-GO@Au电极的传感器，用于单独和同时测定酚类污染物。用3-氨丙基三乙氧基硅烷（APTES）、石墨烯（GO）和金纳米颗粒（Au NPs）修饰的ITO电极可显著增强酚类污染物在电极表面的电子传输。酚类污染物的氧化还原机制包括随着r-GO@Au的增强而发生的电子转移。修饰后的ITO电极对酚类污染物表现出优异的电学性能，且ECL强度与酚类污染物浓度之间具有良好的线性关系，检测限分别为0.82、1.41和1.95 μM。使用ITO/APTES/r-GO@Au电极单独和同时测定AP、CC和HQ是可行的。该传感器作为一种低成本、灵敏且快速的同时测定药物衍生污染物的方法具有很大的前景。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/37f2/9394483/170a7f27aad8/d2ra03900a-f8.jpg
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