Polymeric Biosensor Development for Electrochemical Analysis of Tartrazine and Methyl Orange

IF 2.2 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC Journal of Electronic Materials Pub Date : 2024-11-22 DOI:10.1007/s11664-024-11587-8

E. V. Anushree, J. G. Manjunatha, K. P. Moulya, Samar A. Aldossari, C. Raril

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Abstract

In the current work, an electrochemical electrode was designed for the detection of tartrazine (TT) with good selectivity and sensitivity. A tyrosine (TY)-modified carbon paste electrode P(TY)MCPE was used for the detection of TT using cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The surface characteristics of both the bare carbon paste electrode (BCPE) and P(TY)MCPE were studied by scanning electron microscopy (SEM) and electrochemical impedance spectroscopy (EIS). The optimum conditions for the study of TT were obtained by studying the scan rate, effect of pH, accumulation potential, time, and variation of concentration. The modified electrode exhibited a good response in comparison with the unmodified electrode under ideal conditions. The P(TY)MCPE displayed good electrochemical performance for concentration of TT in the linear range of 2.0–80.0 μM with a limit of quantification (LOQ) of 1.676 μM and limit of detection (LOD) of 0.502 μM. The fabricated electrode exhibited good reproducibility, repeatability, and stability. In the presence of methyl orange (MO) and other interferents, the modified P(TY)MCPE exhibited good selectivity for TT. The P(TY)MCPE electrode was successfully applied for the determination of TT in a real sample with a satisfactory recovery rate.

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用于酒黄石和甲基橙电化学分析的聚合物生物传感器的研制

本研究设计了一种具有良好选择性和灵敏度的检测酒黄石的电化学电极。采用酪氨酸（TY）修饰碳糊电极P(TY)MCPE，采用循环伏安法（CV）和差分脉冲伏安法（DPV）检测TT。采用扫描电镜（SEM）和电化学阻抗谱（EIS）研究了裸碳糊电极（BCPE）和P(TY)MCPE的表面特性。通过考察扫描速率、pH值、积累势、时间、浓度变化等因素的影响，确定了TT的最佳研究条件。在理想条件下，与未修饰的电极相比，修饰电极表现出良好的响应。在TT浓度为2.0 ~ 80.0 μM的线性范围内，P(TY)MCPE表现出良好的电化学性能，定量限为1.676 μM，检出限为0.502 μM。所制备的电极具有良好的再现性、重复性和稳定性。在甲基橙（MO）等干扰物存在下，改性的P(TY)MCPE对TT具有良好的选择性。将P(TY)MCPE电极成功地应用于实际样品中TT的测定，回收率满意。

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来源期刊

Journal of Electronic Materials 工程技术-材料科学：综合

CiteScore

4.10

自引率

4.80%

发文量

693

审稿时长

3.8 months

期刊介绍： The Journal of Electronic Materials (JEM) reports monthly on the science and technology of electronic materials, while examining new applications for semiconductors, magnetic alloys, dielectrics, nanoscale materials, and photonic materials. The journal welcomes articles on methods for preparing and evaluating the chemical, physical, electronic, and optical properties of these materials. Specific areas of interest are materials for state-of-the-art transistors, nanotechnology, electronic packaging, detectors, emitters, metallization, superconductivity, and energy applications. Review papers on current topics enable individuals in the field of electronics to keep abreast of activities in areas peripheral to their own. JEM also selects papers from conferences such as the Electronic Materials Conference, the U.S. Workshop on the Physics and Chemistry of II-VI Materials, and the International Conference on Thermoelectrics. It benefits both specialists and non-specialists in the electronic materials field. A journal of The Minerals, Metals & Materials Society.