Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Olga Nekrassova"'
A novel method for the detection of arsenic(III) in 1 M HCl at a gold nanoparticle-modified glassy carbon electrode has been developed. The gold nanoparticles were electrodeposited onto the glassy carbon electrode via a potential step from +1.055 to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b065adf3d29a30680b6f561b148d7f3d
https://doi.org/10.1021/ac049232x
https://doi.org/10.1021/ac049232x
The electrochemical oxidation of Cr(III) to Cr(VI) species was examined in aqueous solution. The responses of boron doped diamond, glassy carbon and gold electrodes were probed towards the oxidation of trivalent chromium over a wide pH range (1.0-13.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd02d86ac66cd8d8f92e5c88899a3af5
https://ora.ox.ac.uk/objects/uuid:ffe9d9cc-a599-4288-bcab-8fb30515bbd7
https://ora.ox.ac.uk/objects/uuid:ffe9d9cc-a599-4288-bcab-8fb30515bbd7
The effect of Cu(II) on the determination of homocysteine via its electrochemically initiated reaction with N, N-diethyl-p-phenylenediamine is examined. The presence of copper inhibited the detection process for homocysteine owing to a complexation r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::01dc0466483f708263397daaeeb1fd7a
https://doi.org/10.1007/s00216-004-2644-8
https://doi.org/10.1007/s00216-004-2644-8
The determination of homocysteine has gained high interest within the biomedical community over recent years as the molecule is an important biomarker for a wide range of diseases. The current report gives a brief overview into the biological signifi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c9f9ed4265b53485e8f178c65a7c552
https://ora.ox.ac.uk/objects/uuid:55e25918-d199-480d-a885-f8867d705af1
https://ora.ox.ac.uk/objects/uuid:55e25918-d199-480d-a885-f8867d705af1
Publikováno v:
ChemPhysChem. 5:1405-1410
The tabrication, characterisation, and electroanalytical application of gold and gold amalgam nanoparticles on glassy carbon electrodes is examined. Once the deposition parameters for gold nanoparticle electrodes were optimised, the analytical utilit
Publikováno v:
Electroanalysis. 16:1285-1291
The electrochemical oxidation of the cysteine-quinone adduct has been examined as a means of providing an electroanalytical cysteine specific detection protocol. The appliance of square-wave voltammetry allowed 0.5 μM as a limit of detection. The ef
Autor:
Timothy G. J. Jones, Gary D. Allen, Nathan S. Lawrence, Richard G. Compton, Li Jiang, Olga Nekrassova
Publikováno v:
Electroanalysis. 14:1464-1469
The oxidation of cysteine by ferricyanide is well established. However, electrochemical studies of the mechanism have to date been underdeveloped due to the lack of resolution between the oxidation waves of the ferrocyanide and cysteine on most elect
Autor:
Olga Nekrassova, Sarah Threlfell, Nathan S. Lawrence, James Davis, Richard G. Compton, Andrew J. Wain, Paul C. White, Geraldine Hignett
Publikováno v:
The Analyst. 127:797-802
The electrochemically initiated reaction of thiols with N,N-diethyl-p-phenylenediamine has been coupled with an existing colorimetric sensing reaction developed by Ellman as a means of providing an electrochemical adaptation of the latter whereby the
Publikováno v:
Talanta. 65(1)
The electrochemical detection of hexavalent chromium species was investigated. It was found that Cr(VI) can undergo chemically irreversible reduction in acidic solutions at gold, glassy carbon and boron-doped diamond electrodes. The process was found
Publikováno v:
Talanta. 64(2)
Inorganic arsenic, a term which encompasses both As (III) and As (V) species, constitutes the highest toxicological risk associated with arsenic in water in contrast to the organic arsenic species. Different determination methods of inorganic arsenic