负载2-{（E）-[（3-羟基苯基）亚氨基]甲基}苯酚的废旧电池棒的酸改性氧化石墨烯：水介质中抗坏血酸和尿酸存在下多巴胺的电化学检测

Q4 Materials Science

Journal of Surface Science and Technology Pub Date : 2022-05-12 DOI:10.18311/jsst/2021/28855

Diganta Kumar Das, Priyakshi Bordoloi

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引用次数: 0

摘要

废旧电池的石墨棒已被用作氧化石墨烯（GO）的来源。酸改性氧化石墨烯（AMGO）负载由水杨醛和3-氨基苯酚获得的席夫碱。当用负载席夫碱的AMGO修饰玻碳电极（GCE）表面时，在尿酸（UA）和抗坏血酸（AA）存在下，其充当多巴胺（DA）的电化学传感器。循环伏安法（CV）、方波伏安法（SWV）和差分脉冲伏安法（DPV）显示DA与UA和AA的峰分离良好。三种方法的DA峰强度随着DA浓度的增加而增加。在1.00×10-1M抗坏血酸和1.00×10-2M尿酸存在下，多巴胺的检测线性范围为9.09×10-4M至1.70×10-3M。检测限估计为9.38×10-10M。

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Acid Modified Graphene Oxide from used Battery Rods Loaded with 2-{(E)-[(3-hydroxyphenyl) imino] methyl} phenol: Electrochemical Detection of Dopamine in Presence of Ascorbic Acid and Uric Acid in Aqueous Medium

The graphite rods of used batteries have been utilized as source for Graphene Oxide (GO). The Acid Modified Graphene Oxide (AMGO) is loaded with Schiff base obtained from salicylaldehyde and 3-amino phenol. Glassy Carbon Electrode (GCE) surface when modified with the Schiff base loaded AMGO acts as electrochemical sensor for Dopamine (DA) in presence of Uric Acid (UA) and Ascorbic Acid (AA). Cyclic Voltammetry (CV), Square Wave Voltammetry (SWV) and Differential Pulse Voltammetry (DPV) shows well separated peaks for DA from UA and AA. The DA peak intensity increases in the three techniques with DA concentration. The linear range for the detection of dopamine is observed from 9.09 × 10-4 M to 1.70 × 10-3 M in presence of 1.00 × 10-1 M Ascorbic Acid and 1.00 × 10-2 M uric acid. The detection limit is estimated to be 9.38 × 10-10 M.

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来源期刊

Journal of Surface Science and Technology PHYSICS, APPLIED-

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期刊介绍： The Indian Society for Surface Science and Technology is an organization for the cultivation, interaction and dissemination of knowledge in the field of surface science and technology. It also strives to promote Industry-Academia interaction