基于改性丝网印刷石墨电极的新型联氨检测电化学传感平台

IF 2.9 Q2 ELECTROCHEMISTRY

Journal of Electrochemical Science and Engineering Pub Date : 2022-10-25 DOI:10.5599/jese.1359

Farideh Mousazadeh, S. Z. Mohammadi, Maryam Mohammadhasani-Pour

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引用次数: 0

摘要

本研究旨在制备一种二氧化锰纳米棒(MnO2 NRs)修饰的丝网印刷石墨电极(SPGE)，用于感应肼。因此，采用了一种简单的方案来构建MnO2纳米棒，然后将其直接应用于修饰SPGE表面。合成的MnO2 NRs/SPGE传感器对肼具有较强的传感行为，峰值电流大，氧化电位小。该电化学传感器检测联氨的检出限低(0.02 μM)，线性动态范围宽(0.05 ~ 275.0 μM)，灵敏度高(0.0625 μA μM-1)。实际估算了传感器在实际水样中的适用性，获得了成功的恢复值。

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Novel electrochemical sensing platform for detection of hydrazine based on modified screen-printed graphite electrode

The current work aimed to fabricate a screen-printed graphite electrode (SPGE) modified by MnO2 nanorods (MnO2 NRs) for sensing hydrazine. Thus, a facile protocol was adopted to construct the MnO2 nanorods that were subsequently applied to modify the SPGE surface directly. As-synthesized MnO2 NRs/SPGE sensor exhibited a strong sensing behavior towards the hydrazine, with a large peak current and small oxidation potential. This electrochemical sensor in the optimized conditions to detect the hydrazine possessed a low detection limit (0.02 μM), a broad linear dynamic range (0.05–275.0 μM) and an admirable sensitivity (0.0625 μA μM-1). The sensor applicability was practically estimated in real water samples, which revealed successful recovery values.

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来源期刊

Journal of Electrochemical Science and Engineering ELECTROCHEMISTRY-

CiteScore

3.60

自引率

27.30%

发文量

审稿时长

6 weeks