About: Voltammetric Determination of Different Antioxidants in Petroleum Products by Working Gold Electrode

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The present paper deals with the problem of voltammetric determination of a mixture of amine-type antioxidant N-phenyl-1-naphthylamine (PNA) and phenol-type antioxidant butylated hydroxytoluene (BHT) in oil matrix by the method of linear sweep voltammetry using gold working electrode. Attention was focused on the effect of large excess of PNA on the curves of anodic oxidation of BHT. It was found that only more than tenfold excess of PNA disturbs the determination of the phenol-type antioxidant in the adopted supporting electrolyte. In such case it is necessary to reduce its content by its transformation into the corresponding nitrosamine by reaction with nitrous acid. The rate constants of this reaction were determined for two different concentrations of PNA. The present paper deals with the problem of voltammetric determination of a mixture of amine-type antioxidant N-phenyl-1-naphthylamine (PNA) and phenol-type antioxidant butylated hydroxytoluene (BHT) in oil matrix by the method of linear sweep voltammetry using gold working electrode. Attention was focused on the effect of large excess of PNA on the curves of anodic oxidation of BHT. It was found that only more than tenfold excess of PNA disturbs the determination of the phenol-type antioxidant in the adopted supporting electrolyte. In such case it is necessary to reduce its content by its transformation into the corresponding nitrosamine by reaction with nitrous acid. The rate constants of this reaction were determined for two different concentrations of PNA. (en)
Title	Voltammetric Determination of Different Antioxidants in Petroleum Products by Working Gold Electrode Voltammetric Determination of Different Antioxidants in Petroleum Products by Working Gold Electrode (en)
skos:prefLabel	Voltammetric Determination of Different Antioxidants in Petroleum Products by Working Gold Electrode Voltammetric Determination of Different Antioxidants in Petroleum Products by Working Gold Electrode (en)
skos:notation	RIV/61388955:_____/13:00389042!RIV14-GA0-61388955
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GAP206/11/1638), P(IAA400400806)
http://linked.open...iv/cisloPeriodika	2
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Navrátil, Tomáš
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyzikální chemie J. Heyrovského AV ČR, v.v.i.
http://linked.open...dnocenehoVysledku	115069
http://linked.open...ai/riv/idVysledku	RIV/61388955:_____/13:00389042
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Linear Sweep Voltammetry; Antioxidants; Mineral Oil (en)
http://linked.open.../riv/klicoveSlovo	Linear Sweep Voltammetry Mineral Oil Antioxidants
http://linked.open...odStatuVydavatele	CS - Státní svaz Srbska a Černé Hory
http://linked.open...ontrolniKodProRIV	[2479BF1E01AF]
http://linked.open...i/riv/nazevZdroje	International Journal of Electrochemical Science
http://linked.open...in/vavai/riv/obor	CG
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Novel electrochemical sensors and sensing techniques for the analysis of nucleic acids structure and interactions Transport of Charged and Uncharged Species across Models of Biological Membranes
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	8
http://linked.open...iv/tvurceVysledku	Navrátil, Tomáš Chýlková, J. Šelešovská, R. Machalický, O. Tomášková, M.
http://linked.open...ain/vavai/riv/wos	000316565800010
issn	1452-3981
number of pages	14 (xsd:int)

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