纳米结构铂电极电化学法定量测定对苯二酚

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-06-29 DOI:10.20450/mjcce.2023.2688

A. A Al-Owais, Ibrahim S El-Hallag, E. H. El-Mossalamy

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引用次数: 0

摘要

采用卷积循环伏安法和差分脉冲伏安法(DPV)在1.0 mol/l HClO4条件下，在C16EO8表面活性剂六方液晶模板上电化学生长纳米介孔铂膜上测定对苯二酚(HQ)的含量。HQ循环伏安图在电位正向扫描中产生一个氧化峰，在反向扫描中产生一个还原峰。采用上述不同的电化学方法考察了HQ浓度的影响。在1.0 mol/l HClO4溶液中，改性铂电极对HQ化合物的测定具有良好的灵敏度。从HQ的循环伏安法发展出的i-t曲线法得到了最佳执行。在8 ~ 55µmol/l的浓度范围内，电流响应呈线性峰值，检出限为0.5726µmol/l，定量限为1.9088µmol/l，证实了该方法快速、廉价、简便的准确性和灵敏度。

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Quantitative determination of hydroquinone via electrochemical methods at nano-architecture platinum electrode

Hydroquinone (HQ) was electrochemically measured using convolutive cyclic voltammetry and differential pulse voltammetry (DPV) on a nano-architecture mesoporous platinum film electrochemically grown from a hexagonal liquid crystalline template of C16EO8 surfactant in 1.0 mol/l HClO4. The HQ cyclic voltammograms produced one oxidative peak in the forward sweep of potential and one reductive peak in the reverse sweep. The effect of HQ concentration was investigated using the different electrochemical methods mentioned above. The modified platinum electrode exhibits good sensitivity for the determination of the HQ compound in 1.0 mol/l HClO4. The best executive was found for the i-t curve method developed from cyclic voltammetry of HQ. It exhibits a linear peak current response over the concentration range of 8 to 55 µmol/l, with a detection limit of 0.5726 µmol/l and a quantification limit of 1.9088 µmol/l, confirming the accuracy and sensitivity of this quick, cheap, and easy method.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.