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Voltammetry of chromium(VI) at the liquid|liquid interface
Tyndall National Institute, University College Cork, Ireland.
Tyndall National Institute, University College Cork, Ireland.
Tyndall National Institute, University College Cork, Ireland.
Tyndall National Institute, University College Cork, Ireland.ORCID-id: 0000-0001-6889-0351
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2005 (Engelska)Ingår i: Electrochemistry communications, ISSN 1388-2481, E-ISSN 1873-1902, Vol. 7, nr 10, s. 976-982Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The voltammetry of hexavalent chromium (ammonium dichromate) at the interface between two immiscible electrolyte solutionsis reported. Detection of Cr(VI) by ion transfer voltammetry is possible by use of an organic phase ionophore, which facilitates thetransfer of Cr(VI) from the aqueous into the organic phase. The ionophore was the penta protonated form of polyamine macrocycle2,5,8,11,14-pentaaza[15]-16,29-phenanthrolinophane (NeoTT). Cyclic voltammetry showed an increase of the peak current onincreasing the concentration of Cr(VI). Square wave voltammetry with background subtraction was employed for low level concentrationdetection. The lowest concentration detected was 0.25 parts per million of Cr(VI).

Ort, förlag, år, upplaga, sidor
Elsevier, 2005. Vol. 7, nr 10, s. 976-982
Nyckelord [en]
Liquid|liquid interface; ITIES; Hexavalent chromium; Facilitated ion transfer; Ammonium dichromate
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URN: urn:nbn:se:liu:diva-92107DOI: 10.1016/j.elecom.2005.06.011OAI: oai:DiVA.org:liu-92107DiVA, id: diva2:620149
Tillgänglig från: 2013-05-07 Skapad: 2013-05-07 Senast uppdaterad: 2017-12-06Bibliografiskt granskad

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