Screen-printed carbon electrode modified with AgNPs obtained via green synthesis for acetaminophen determination

IF 2.6 4区化学 Q3 ELECTROCHEMISTRY

Journal of Solid State Electrochemistry Pub Date : 2024-09-17 DOI:10.1007/s10008-024-06070-7

Isaac A. Rodrigues, Darla de Vargas, Chádia Schissler, Allan de Moraes Lisbôa, Vladimir Lavayen, Jacqueline Arguello Da Silva

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Abstract

Cyclic voltammetry (CV), differential pulse voltammetry (DPV), and square wave voltammetry (SWV) were employed to investigate the electrochemical behavior of acetaminophen (APAP) at a screen-printed carbon electrode (SPCE) modified with silver nanoparticles (AgNPs) synthesized via an eco-friendly process. Hibiscus rosa-sinensis flower extract acts as a stabilizing and reducing agent to produce AgNPs. UV–Vis spectroscopy, dynamic light scattering (DLS), and X-ray diffraction (XRD) analyses confirmed the formation of the AgNPs. The modified electrode, SPCE/AgNPs, demonstrated an excellent electrochemical response for APAP detection within a linear range of 0.5–100 µmol L⁻¹ with correlation coefficients of 0.995 and 0.993 for DPV and SWV methods, respectively. The limit of detection (LOD) and limit of quantification (LOQ) were 0.14 and 0.28 µmol L⁻¹ for the DPV method and 0.051 and 0.10 µmol L⁻¹ for the SWV method, respectively. The RSD for ten measurements was 0.54% and 0.35% for DPV and SWV, respectively. The proposed sensor was successfully applied to quantify APAP in pharmaceutical samples. Furthermore, it proved selective in determining APAP in the presence of common interfering compounds such as ascorbic acid and caffeine.

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用绿色合成技术获得的 AgNPs 修饰的丝网印刷碳电极用于对乙酰氨基酚的测定

采用循环伏安法（CV）、差分脉冲伏安法（DPV）和方波伏安法（SWV）研究了对乙酰氨基酚（APAP）在经环保工艺合成的银纳米粒子（AgNPs）修饰的丝网印刷碳电极（SPCE）上的电化学行为。芙蓉花萃取物是生产 AgNPs 的稳定剂和还原剂。紫外可见光谱、动态光散射（DLS）和 X 射线衍射（XRD）分析证实了 AgNPs 的形成。改性电极 SPCE/AgNPs 在 0.5-100 µmol L-1 的线性范围内对 APAP 的检测表现出了极佳的电化学响应，DPV 和 SWV 方法的相关系数分别为 0.995 和 0.993。DPV 方法的检出限（LOD）和定量限（LOQ）分别为 0.14 和 0.28 µmol L-1，SWV 方法的检出限（LOD）和定量限（LOQ）分别为 0.051 和 0.10 µmol L-1。DPV 和 SWV 十次测量的 RSD 分别为 0.54% 和 0.35%。所提出的传感器成功地应用于定量检测药物样品中的 APAP。此外，在抗坏血酸和咖啡因等常见干扰化合物存在的情况下，该传感器也能选择性地测定 APAP。

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来源期刊

Journal of Solid State Electrochemistry 工程技术-电化学

CiteScore

4.80

自引率

4.00%

发文量

227

审稿时长

4.1 months

期刊介绍： The Journal of Solid State Electrochemistry is devoted to all aspects of solid-state chemistry and solid-state physics in electrochemistry. The Journal of Solid State Electrochemistry publishes papers on all aspects of electrochemistry of solid compounds, including experimental and theoretical, basic and applied work. It equally publishes papers on the thermodynamics and kinetics of electrochemical reactions if at least one actively participating phase is solid. Also of interest are articles on the transport of ions and electrons in solids whenever these processes are relevant to electrochemical reactions and on the use of solid-state electrochemical reactions in the analysis of solids and their surfaces. The journal covers solid-state electrochemistry and focusses on the following fields: mechanisms of solid-state electrochemical reactions, semiconductor electrochemistry, electrochemical batteries, accumulators and fuel cells, electrochemical mineral leaching, galvanic metal plating, electrochemical potential memory devices, solid-state electrochemical sensors, ion and electron transport in solid materials and polymers, electrocatalysis, photoelectrochemistry, corrosion of solid materials, solid-state electroanalysis, electrochemical machining of materials, electrochromism and electrochromic devices, new electrochemical solid-state synthesis. The Journal of Solid State Electrochemistry makes the professional in research and industry aware of this swift progress and its importance for future developments and success in the above-mentioned fields.