dc.contributor.author |
Ziyatdinova G. |
|
dc.contributor.author |
Khuzina A. |
|
dc.contributor.author |
Budnikov H. |
|
dc.date.accessioned |
2018-09-18T20:01:18Z |
|
dc.date.available |
2018-09-18T20:01:18Z |
|
dc.date.issued |
2012 |
|
dc.identifier.issn |
0003-2719 |
|
dc.identifier.uri |
https://dspace.kpfu.ru/xmlui/handle/net/135808 |
|
dc.description.abstract |
Sterically hindered phenols (2,6-di-tert-butyl-4-methylphenol (BHT) and its derivatives) are irreversibly oxidized at +0.96-1.30 V on glassy carbon electrode (GCE) in 0.1 M LiCIO4 in acetonitrile in accordance to cyclic voltammetry data. α-Tocopherol gives oxidation step at +0.4 V on voltammograms under the same conditions. Oxidation process leads to formation of corresponding quinoid derivatives. Calibration graphs linearity is 1.5-2 order for all compounds under investigation. Limits of detection are in the range 9.6-44.3 μM. The approach has been applied for determination of BHT and α-tocopherol in vegetable and lubricating oils as well as pharmaceuticals and cosmetics using preliminary single extraction of analytes with acetonitrile for 15 min at oil/extractant ratio of 1:2.5. © 2012 Copyright Taylor and Francis Group, LLC. |
|
dc.relation.ispartofseries |
Analytical Letters |
|
dc.subject |
α-Tocopherol |
|
dc.subject |
BHT |
|
dc.subject |
Cyclic voltammetry |
|
dc.subject |
Food analysis |
|
dc.subject |
Lubricating oils |
|
dc.subject |
Pharmaceutical analysis |
|
dc.subject |
Sterically hindered phenolic antioxidants |
|
dc.title |
Determination of Sterically Hindered Phenols and α-Tocopherol by Cyclic Voltammetry |
|
dc.type |
Article |
|
dc.relation.ispartofseries-issue |
12 |
|
dc.relation.ispartofseries-volume |
45 |
|
dc.collection |
Публикации сотрудников КФУ |
|
dc.relation.startpage |
1670 |
|
dc.source.id |
SCOPUS00032719-2012-45-12-SID84864568561 |
|