Please use this identifier to cite or link to this item: https://ir.swu.ac.th/jspui/handle/123456789/11862
ชื่อเรื่อง: The effects of the supporting electrolyte on the simultaneous determination of vitamin B2, vitamin B6, and vitamin C using a modification-free screen-printed carbon electrode
ผู้แต่ง: Yomthiangthae P.
Kondo T.
Chailapakul O.
Siangproh W.
Keywords: Biosynthesis
Carbon
Coenzymes
Electrochemical oxidation
Electrolytes
Fruit juices
Voltammetry
Acetate buffer solutions
Britton-Robinson buffer
Electrochemical behaviors
Phosphate buffer solutions
Screen-printed carbon electrodes
Simultaneous detection
Simultaneous determinations
Square wave voltammetry
Electrochemical electrodes
acetic acid
ascorbic acid
electrolyte
lanthanum
phosphate
pyridoxine
riboflavin
analytic method
Article
electrochemistry
fruit and vegetable juice
ion conductance
oxidation
pH
priority journal
reliability
reproducibility
square wave voltammetry
urine sampling
vital capacity
วันที่เผยแพร่: 2020
บทคัดย่อ: To provide new choices and to replace the complicated steps of synthesizing modified electrodes, this research reports the systematic investigation of the effects of different supporting electrolytes on the electrochemical behavior of vitamin B2 (VB2), vitamin B6 (VB6), and vitamin C (VC) using a common screen-printed carbon electrode (SPCE) to achieve simultaneous detection. The roles of various well-known supporting electrolytes, including Britton-Robinson buffer solution (BRBS), acetate buffer solution (ABS), and phosphate buffer solution (PBS), in the electrochemical oxidation of VB2, VB6, and VC were carefully evaluated by square wave voltammetry (SWV). From a successive investigation based on the ionic conductivity of the species contained in the supporting electrolytes, PBS at pH 3.5 was selected as a suitable supporting electrolyte for the simultaneous detection of VB2, VB6, and VC. Under the optimized conditions, the simultaneous detection of VB2, VB6, and VC provided satisfactory sensitivity, selectivity, and reproducibility even when using a common electrode. To demonstrate the practicality and reliability of the proposed analytical procedure, the simultaneous detection of VB2, VB6, and VC was performed in mixed vegetable and fruit juice samples and urine samples by SWV, and the results were compared with those obtained by chromatographic detection. Therefore, this method was found to be simple and may be a new alternative for the simultaneous determination of VB2, VB6, and VC in practical applications. © The Royal Society of Chemistry and the Centre National de la Recherche Scientifique.
URI: https://ir.swu.ac.th/jspui/handle/123456789/11862
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85090399010&doi=10.1039%2fd0nj02175j&partnerID=40&md5=d432e56639dc55c7cf578b69d1e99ea7
ISSN: 11440546
Appears in Collections:Scopus 1983-2021

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