liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
Investigation into the voltammetric behaviour and detection of selenium(IV) at metal electrodes in diverse electrolyte media
Tyndall National Institute, University College Cork, Ireland.ORCID iD: 0000-0001-6889-0351
Tyndall National Institute, University College Cork, Ireland.
Tyndall National Institute, University College Cork, Ireland.
2011 (English)In: Analytica Chimica Acta, ISSN 0003-2670, E-ISSN 1873-4324, Vol. 699, no 2, 127-133 p.Article in journal (Refereed) Published
Abstract [en]

The voltammetric behaviour of selenium(IV) was studied at platinum and gold electrodes in sulphuricacid, perchloric acid and potassium chloride media as a basis for its voltammetric detection. The bestvoltammetric behaviour was recorded at gold electrodes with perchloric acid as the supporting electrolyte.The concomitant presence of metals, such as copper or lead, and of model biomolecules, suchas bovine serum albumin, in the solution resulted in a deterioration of the electrochemical response forselenium(IV). Quantitative detection of selenium(IV) by square wave anodic stripping voltammetry atboth a millimetre-sized gold disc electrode and a microband electrode array revealed linear responsesto selenium concentration in the ranges 5–15 M and 0.1–10 M, respectively, with 60 s preconcentration.The sensitivities were 6.4 A M−1 cm−2 and 100 A M−1 cm−2 at the disc and the microband array,respectively. The detection limit at the microband electrode array was 25 nM, illustrating the potentialityof such microelectrodes for the development of mercury-free analytical methods for the trace detectionof selenium(IV).

Place, publisher, year, edition, pages
Elsevier, 2011. Vol. 699, no 2, 127-133 p.
Keyword [en]
Selenium, Gold electrode, Microelectrode array, Anodic stripping voltammetry
National Category
Analytical Chemistry
URN: urn:nbn:se:liu:diva-92110DOI: 10.1016/j.aca.2011.05.027OAI: diva2:620159
Available from: 2013-05-07 Created: 2013-05-07 Last updated: 2013-10-04Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Beni, Valerio
In the same journal
Analytica Chimica Acta
Analytical Chemistry

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 57 hits
ReferencesLink to record
Permanent link

Direct link