Determination of Selenium Content in Biologically Active Dietary Supplements and Drinking Water by Anodic Stripping Voltammetry.
Saved in:
| Title: | Determination of Selenium Content in Biologically Active Dietary Supplements and Drinking Water by Anodic Stripping Voltammetry. |
|---|---|
| Authors: | Skiba, T. V.1,2 (AUTHOR) titovat@niic.nsc.ru, Xiaofeng, Zhang2 (AUTHOR), Narozhnykh, K. N.3 (AUTHOR) |
| Source: | Journal of Analytical Chemistry. Jan2026, Vol. 81 Issue 1, p172-181. 10p. |
| Subjects: | Voltammetry technique, Rotating disk electrodes, Electrolyte solutions, Citric acid, Drinking water, Analytical chemistry, Dietary supplements, Perchloric acid |
| Abstract: | The work is devoted to the determination of selenium(IV) content by anodic stripping voltammetry (ASV) with a gold rotating disk electrode (GRDE). The effect of the supporting electrolyte composition on the analytical signal (AS) of selenium is studied and the electrochemical characteristics (deposition potential, potential sweep rate, and deposition time) for recording the anodic current of selenium are optimized. The supporting electrolytes are 4 mM perchloric acid and 3 mM citric acid. A possibility of selenium determination by ASV using a GRDE in 3 mM citric acid is studied for the first time. The relative standard deviation for the concentrations of selenium 10 and 31 μg/L is no more than 5% for both electrolytes (n = 10). Although the sensitivity of the selenium AS in 4 mM perchloric acid is higher than that in 3 mM citric acid, the choice of citric acid as a supporting electrolyte offers a less toxic and more environmentally friendly alternative to perchloric acid. The limits of detection (LODs) calculated using the 3sb/b test are 0.05 μg/L in 4 mM perchloric acid (td = 60 s) and 0.1 μg/L in 3 mM citric acid (td = 90 s), while the limits of quantification (LOQs) calculated using the 10sb/b test are 0.15 and 0.3 μg/L, respectively. The method is applied to determine Se(IV) in a biologically active dietary supplement and in drinking water and demonstrates high accuracy (analytical recovery 96–108%) and rapidity. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Analytical Chemistry is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
|---|---|
| Header | DbId: egs DbLabel: Engineering Source An: 192844658 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Determination of Selenium Content in Biologically Active Dietary Supplements and Drinking Water by Anodic Stripping Voltammetry. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Skiba%2C+T%2E+V%2E%22">Skiba, T. V.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> titovat@niic.nsc.ru</i><br /><searchLink fieldCode="AR" term="%22Xiaofeng%2C+Zhang%22">Xiaofeng, Zhang</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Narozhnykh%2C+K%2E+N%2E%22">Narozhnykh, K. N.</searchLink><relatesTo>3</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Analytical+Chemistry%22">Journal of Analytical Chemistry</searchLink>. Jan2026, Vol. 81 Issue 1, p172-181. 10p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Voltammetry+technique%22">Voltammetry technique</searchLink><br /><searchLink fieldCode="DE" term="%22Rotating+disk+electrodes%22">Rotating disk electrodes</searchLink><br /><searchLink fieldCode="DE" term="%22Electrolyte+solutions%22">Electrolyte solutions</searchLink><br /><searchLink fieldCode="DE" term="%22Citric+acid%22">Citric acid</searchLink><br /><searchLink fieldCode="DE" term="%22Drinking+water%22">Drinking water</searchLink><br /><searchLink fieldCode="DE" term="%22Analytical+chemistry%22">Analytical chemistry</searchLink><br /><searchLink fieldCode="DE" term="%22Dietary+supplements%22">Dietary supplements</searchLink><br /><searchLink fieldCode="DE" term="%22Perchloric+acid%22">Perchloric acid</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The work is devoted to the determination of selenium(IV) content by anodic stripping voltammetry (ASV) with a gold rotating disk electrode (GRDE). The effect of the supporting electrolyte composition on the analytical signal (AS) of selenium is studied and the electrochemical characteristics (deposition potential, potential sweep rate, and deposition time) for recording the anodic current of selenium are optimized. The supporting electrolytes are 4 mM perchloric acid and 3 mM citric acid. A possibility of selenium determination by ASV using a GRDE in 3 mM citric acid is studied for the first time. The relative standard deviation for the concentrations of selenium 10 and 31 μg/L is no more than 5% for both electrolytes (n = 10). Although the sensitivity of the selenium AS in 4 mM perchloric acid is higher than that in 3 mM citric acid, the choice of citric acid as a supporting electrolyte offers a less toxic and more environmentally friendly alternative to perchloric acid. The limits of detection (LODs) calculated using the 3sb/b test are 0.05 μg/L in 4 mM perchloric acid (td = 60 s) and 0.1 μg/L in 3 mM citric acid (td = 90 s), while the limits of quantification (LOQs) calculated using the 10sb/b test are 0.15 and 0.3 μg/L, respectively. The method is applied to determine Se(IV) in a biologically active dietary supplement and in drinking water and demonstrates high accuracy (analytical recovery 96–108%) and rapidity. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Analytical Chemistry is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=192844658 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1134/S1061934825701485 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 10 StartPage: 172 Subjects: – SubjectFull: Voltammetry technique Type: general – SubjectFull: Rotating disk electrodes Type: general – SubjectFull: Electrolyte solutions Type: general – SubjectFull: Citric acid Type: general – SubjectFull: Drinking water Type: general – SubjectFull: Analytical chemistry Type: general – SubjectFull: Dietary supplements Type: general – SubjectFull: Perchloric acid Type: general Titles: – TitleFull: Determination of Selenium Content in Biologically Active Dietary Supplements and Drinking Water by Anodic Stripping Voltammetry. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Skiba, T. V. – PersonEntity: Name: NameFull: Xiaofeng, Zhang – PersonEntity: Name: NameFull: Narozhnykh, K. N. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 01 Text: Jan2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 10619348 Numbering: – Type: volume Value: 81 – Type: issue Value: 1 Titles: – TitleFull: Journal of Analytical Chemistry Type: main |
| ResultId | 1 |
