dc.contributor.author |
Ziyatdinova G. |
|
dc.contributor.author |
Os'Kina K. |
|
dc.contributor.author |
Ziganshina E. |
|
dc.contributor.author |
Budnikov H. |
|
dc.date.accessioned |
2018-09-18T20:26:11Z |
|
dc.date.available |
2018-09-18T20:26:11Z |
|
dc.date.issued |
2015 |
|
dc.identifier.issn |
1759-9660 |
|
dc.identifier.uri |
https://dspace.kpfu.ru/xmlui/handle/net/139862 |
|
dc.description.abstract |
© 2015 The Royal Society of Chemistry. A voltammetric method for the simultaneous detection and quantification of tert-butylhydroquinone (TBHQ) and butylated hydroxyanisole (BHA) was developed using a multi-walled carbon nanotube (MWNT)-Brij® 35 modified glassy carbon electrode in Brij® 35 micellar medium. Significant improvements of TBHQ and BHA voltammetric characteristics were observed on the modified electrode. Electrochemical oxidation of TBHQ and BHA is a diffusion-controlled process that is confirmed by the linear dependence of peak currents on υ<sup>1/2</sup> with R<sup>2</sup> = 0.9983 and 0.9901, respectively, and involves two electrons corresponding to the formation of p-quinones. Under conditions of differential pulse voltammetry, a linear dynamic range of 1.0-1000 μmol L<sup>-1</sup> for TBHQ and 0.50-7.50 and 10.0-750 μmol L<sup>-1</sup> for BHA were obtained with the detection limits of 0.26 and 0.15 μmol L<sup>-1</sup>, respectively. The approach developed was successfully applied for the quantification of TBHQ and BHA in linseed oil samples with recoveries from 99% to 103% after a simple and rapid extraction with Brij® 35 micellar medium. |
|
dc.relation.ispartofseries |
Analytical Methods |
|
dc.title |
Simultaneous determination of TBHQ and BHA on a MWNT-Brij® 35 modified electrode in micellar media |
|
dc.type |
Article |
|
dc.relation.ispartofseries-issue |
19 |
|
dc.relation.ispartofseries-volume |
7 |
|
dc.collection |
Публикации сотрудников КФУ |
|
dc.relation.startpage |
8344 |
|
dc.source.id |
SCOPUS17599660-2015-7-19-SID84942543969 |
|