The Application of Alumina for Electroanalytical Determination of Gallic Acid

Novakovic Tatjana B.; Pavlovic Stefan M.; Pagnacco Maja C.Bankovic Predrag T.Mojovic Zorica D.

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The Application of Alumina for Electroanalytical Determination of Gallic Acid

机译：The Application of Alumina for Electroanalytical Determination of Gallic Acid

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摘要

A novel and simple electrochemical sensor for the determination of gallic acid is presented. The alumina sample was characterized by X-ray diffraction, FTIR, and particle size distribution analysis. The carbon paste electrode was modified with alumina and used as a sensor. The performances of the sensor were assessed by cyclic voltammetry and square-wave voltammetry techniques. The oxidation of gallic acid on alumina-modified carbon paste electrode was an irreversible diffusion-controlled process. The linear relationship of peak current and concentration was obtained for the concentration range of 1.4 to 115 mu M with the limit of detection of 0.8 mu M. The sensor's ability to test gallic aid in real systems was successfully tested in wine samples.

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来源
《Electrocatalysis》 |2023年第1期|18-28|共11页
作者
Novakovic Tatjana B.; Pavlovic Stefan M.; Pagnacco Maja C.Bankovic Predrag T.Mojovic Zorica D.;
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作者单位

Univ Belgrade;

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正文语种英语
中图分类化学动力学、催化作用;
关键词
Alumina; X-ray diffraction; Infrared spectroscopy; Sensors; Wine; VOLTAMMETRIC DETERMINATION; ELECTROCATALYTIC OXIDATION; ANTIOXIDANT CAPACITY; CARBON NANOTUBES; ELECTRODE; SURFACE; SENSOR; WINE; GRAPHITE; COMPLEX;

The Application of Alumina for Electroanalytical Determination of Gallic Acid

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