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Analysis of sudan I, sudan II, sudan III, and sudan IV in food by HPLC with electrochemical detection: Comparison of glassy carbon electrode with carbon nanotube-ionic liquid gel modified electrode

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dc.contributor.authorChailapakul O.
dc.contributor.authorWonsawat W.
dc.contributor.authorSiangproh W.
dc.contributor.authorGrudpan K.
dc.contributor.authorZhao Y.
dc.contributor.authorZhu Z.
dc.date.accessioned2021-04-05T04:31:58Z
dc.date.available2021-04-05T04:31:58Z
dc.date.issued2008
dc.date.issuedBE2551
dc.description.abstractA method was developed for analyzing of sudan I, sudan II, sudan III, and sudan IV by high performance liquid chromatography coupled with an electrochemical detector. The electrochemical oxidation of each compound was investigated with a carbon nanotube-ionic liquid gel modified glassy carbon (MWNTs-IL-Gel/GC) electrode using cyclic voltammetry. The results were compared with those of glassy carbon electrodes. At the MWNTs-IL-Gel/GC electrode, highly reproducible, well-defined cyclic voltammograms for sudan oxidation were obtained. In the flow system, MWNTs-IL-Gel/GC exhibited highly reproducible and well-defined amperometric signals without peak tailing. In addition, the determination of sudan dyes by mean of isocratic reverse-phase HPLC, with amperometric detection at MWNTs-IL-Gel/GC and GC electrode, have been investigated. The chromatograms showed excellent separation. The detection limits ranged from 0.001 to 0.005 ppm. The method was sensitive, selective and could be applicable for the assay of sudan dyes in soft drink samples. © 2008 Elsevier Ltd. All rights reserved.
dc.format.mimetypeapplication/pdf
dc.identifier.citationFood Chemistry. Vol 109, No.4 (2008), p.876-882
dc.identifier.doi10.1016/j.foodchem.2008.01.018
dc.identifier.issn3088146
dc.identifier.other2-s2.0-41549157303
dc.identifier.urihttps://hdl.handle.net/20.500.14740/3940
dc.rights.holderมหาวิทยาลัยศรีนครินทรวิโรฒ
dc.subject.otherAzo dye
dc.subject.otherCarbon
dc.subject.otherCarbon nanotube
dc.subject.otherIonic liquid
dc.subject.otherOil scarlet
dc.subject.otherScarlet red
dc.subject.otherSudan I
dc.subject.otherSudan ii
dc.subject.otherUnclassified drug
dc.subject.otherAnalytic method
dc.subject.otherArticle
dc.subject.otherCyclic potentiometry
dc.subject.otherElectrochemical detection
dc.subject.otherElectrode
dc.subject.otherFood analysis
dc.subject.otherFood color
dc.subject.otherHigh performance liquid chromatography
dc.subject.otherIntermethod comparison
dc.subject.otherOxidation
dc.titleAnalysis of sudan I, sudan II, sudan III, and sudan IV in food by HPLC with electrochemical detection: Comparison of glassy carbon electrode with carbon nanotube-ionic liquid gel modified electrode
dc.typeArticle
dspace.entity.typePublication
swu.datasource.scopushttps://www.scopus.com/inward/record.uri?eid=2-s2.0-41549157303&doi=10.1016%2fj.foodchem.2008.01.018&partnerID=40&md5=6c2edd700a007ae6bac1315063481f7c

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