Sensitive electrochemiluminescent detection of hydroquinone using silver/luminol-functionalized carbon microspheres

IF 2.6 4区生物学 Q2 BIOCHEMICAL RESEARCH METHODS

Analytical biochemistry Pub Date : 2025-03-12 DOI:10.1016/j.ab.2025.115842

Hui Zhang, Ziqi Wang, Yahui Ji, Junfeng Li, Feifei Chen, Fangxin Du, Gen Liu

引用次数: 0

Abstract

The detection of organic pollutants in water was deemed critical for safeguarding aquatic ecosystems, maintaining human health, and upholding water quality standards. In this study, a novel electrochemiluminescence (ECL) sensor was proposed for the sensitive detection of hydroquinone (HQ) in lake water, utilizing a glassy carbon electrode (GCE) modified with silver/luminol-functionalized carbon microspheres (GCE/CM@Ag/Lu). Due to the consumption of H₂O₂ by HQ, the ECL signal was attenuated, enabling the quantitative detection of HQ. Under optimized conditions, the linear range for HQ ranged from 1.0 × 10⁻⁴–1.0 × 10⁻¹⁰ mol L⁻¹, with a limit of detection (LOD) of 3.3 × 10⁻¹¹ mol L⁻¹ (S/N = 3). The proposed ECL sensor shows promising potential to open new avenues for water quality assessment.

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银/鲁米诺功能化碳微球电化学发光对对苯二酚的灵敏检测。

检测水中有机污染物被认为对保护水生生态系统、维护人类健康和维护水质标准至关重要。本研究利用银/鲁米醇功能化碳微球（GCE/CM@Ag/Lu）修饰的玻碳电极（GCE），提出了一种新型的电化学发光（ECL）传感器，用于湖泊水中对苯二酚（HQ）的灵敏检测。由于HQ对H2O2的消耗，ECL信号被衰减，使得HQ的定量检测成为可能。在优化条件下，HQ的线性范围为1.0×10-4 ~ 1.0×10-10 mol·L-1，检出限（LOD）为3.3×10-11 mol·L-1 （S/N = 3）。所提出的ECL传感器有望为水质评价开辟新的途径。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Analytical biochemistry 生物-分析化学

CiteScore

5.70

自引率

0.00%

发文量

283

审稿时长

44 days

期刊介绍： The journal''s title Analytical Biochemistry: Methods in the Biological Sciences declares its broad scope: methods for the basic biological sciences that include biochemistry, molecular genetics, cell biology, proteomics, immunology, bioinformatics and wherever the frontiers of research take the field. The emphasis is on methods from the strictly analytical to the more preparative that would include novel approaches to protein purification as well as improvements in cell and organ culture. The actual techniques are equally inclusive ranging from aptamers to zymology. The journal has been particularly active in: -Analytical techniques for biological molecules- Aptamer selection and utilization- Biosensors- Chromatography- Cloning, sequencing and mutagenesis- Electrochemical methods- Electrophoresis- Enzyme characterization methods- Immunological approaches- Mass spectrometry of proteins and nucleic acids- Metabolomics- Nano level techniques- Optical spectroscopy in all its forms. The journal is reluctant to include most drug and strictly clinical studies as there are more suitable publication platforms for these types of papers.