ELECTROCHEMICAL DETERMINATION OF ASCORBIC ACID, PARACETAMOL, CAFFEINE AT ELECTROCHEMICALLY REDUCED GRAPHENE OXIDE MODIFIED ELECTRODE
Vol. 126 No. 1D (2017), Original Article
Vol. 126 No. 1D (2017)

ELECTROCHEMICAL DETERMINATION OF ASCORBIC ACID, PARACETAMOL, CAFFEINE AT ELECTROCHEMICALLY REDUCED GRAPHENE OXIDE MODIFIED ELECTRODE

Original Article
https://doi.org/10.26459/hueuni-jns.v126i1D.4560
Published 2017-12-26
Tran Thanh Tam Toan
University of Sciences, Hue University, 77 Nguyen Hue St., Hue, Vietnam
Tran Minh Tri
University of Education, Hue University, 34 Le Loi St., Hue, Vietnam
Nguyen Hai Phong
University of Sciences, Hue University, 77 Nguyen Hue St., Hue, Vietnam
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How to Cite

1.
Toàn TTT, Trí TM, Phong NH. ELECTROCHEMICAL DETERMINATION OF ASCORBIC ACID, PARACETAMOL, CAFFEINE AT ELECTROCHEMICALLY REDUCED GRAPHENE OXIDE MODIFIED ELECTRODE. hueuni-jns [Internet]. 2017Dec.26 [cited 2025Feb.22];126(1D):139-4. Available from: https://jos.hueuni.edu.vn/index.php/hujos-ns/article/view/4560
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Abstract

Graphene oxide (GO) was electrochemically reduced on a glassy carbon electrode (GCE) surface (ERGO/GCE). Under the optimized conditions, the method allowed simultaneous determination of ascorbic acid, paracetamol and caffeine in the linear working range of 20-459 µM, 4-91 µM, 20-441 µM with limit of detection (3Sy/x/b) (LOD) of 3.71, 1.68, 2.45 µM and limit of quantitation (LOQ) of 11.1, 5.03, 7.34 µM of for ascorbic acid (AA), paracetamol (PAR) and caffeine (CAF) respectively.

https://doi.org/10.26459/hueuni-jns.v126i1D.4560
PDF (Vietnamese)
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