Electrochemical Determination of Tyramine Using a Carbon Ionic Liquid Paste Electrode Modified with f-MWCNTs/Graphene Nanocomposite Film

IF 2.7 4区化学 Q3 CHEMISTRY, PHYSICAL

Electrocatalysis Pub Date : 2023-05-05 DOI:10.1007/s12678-023-00825-y

Muhaned Mohammed Eteya, Gholam Hossein Rounaghi, Behjat Deiminiat

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引用次数: 1

Abstract

This paper describes the development of a carbon paste electrode based on the butyl-3-methylimidazolium bis (trifluoromethylsulfonyl) imide ([bmim] NTF2) ionic liquid and its modification with functionalized multiwalled carbon nanotubes (f-MWCNTs) /graphene (GR) nanocomposite film. The f-MWCNTs-GR modified carbon ionic liquid paste electrode (CILPE) was utilized for electrochemical determination of tyramine using the square wave voltammetry technique. The prepared electrochemical sensor exhibited an excellent electrocatalytic behavior for oxidation of tyramine molecules in solutions compared to the carbon paste electrode. This behavior can be assigned to the synergistic effect of carbon nanotubes, graphen and ionic liquid. The oxidation peak currents of tyramine were linear in the concentration range of 1–1000 μM with a detection limit of 0.5 μM. The obtained experimental results showed that the f-MWCNTs-GR/CILPE has a good selectivity toward tyramine molecules in the presence of interfering specious and it can be used confidently for measurement the concentration of tyramine in food and biological samples.

Graphical Abstract

Abstract Image

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f-MWCNTs/石墨烯纳米复合膜修饰碳离子液体糊电极电化学测定酪胺

本文介绍了基于丁基-3-甲基咪唑双(三氟甲基磺酰基)亚胺([bmim] NTF2)离子液体的碳糊电极的研制及其功能化多壁碳纳米管(f-MWCNTs) /石墨烯(GR)纳米复合膜的改性。采用f-MWCNTs-GR改性碳离子液体糊电极(CILPE)方波伏安法测定了酪胺。与碳糊电极相比，所制备的电化学传感器在溶液中对酪胺分子的氧化表现出优异的电催化行为。这种行为可以归因于碳纳米管、石墨烯和离子液体的协同作用。酪胺的氧化峰电流在浓度1 ~ 1000 μM范围内呈线性关系，检出限为0.5 μM。实验结果表明，f-MWCNTs-GR/CILPE在干扰似是而非的情况下对酪胺分子具有良好的选择性，可可靠地用于食品和生物样品中酪胺的浓度测定。图形抽象

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来源期刊

Electrocatalysis CHEMISTRY, PHYSICAL-ELECTROCHEMISTRY

CiteScore

4.80

自引率

6.50%

发文量

审稿时长

>12 weeks

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