Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Luis Kosminsky"'
Autor:
Thiago R.L.C. Paixão, Luis Kosminsky, Francisco J. Ramirez-Fernandez, Mauro Bertotti, Henrique E. M. Peres, Denise Lowinsohn, Tiago Luiz Ferreira
Publikováno v:
Sensors and Actuators B: Chemical. 113:80-87
A method for the simple manufacture of microelectrode arrays is described. The construction technique is based on microelectronics technology by conventional sputtering deposition of layers of Ni/Cr and Au, photolithography and a final treatment to i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::150fec197a528f4a16cc5b674c8d1c53
https://doi.org/10.1016/j.snb.2005.02.024
https://doi.org/10.1016/j.snb.2005.02.024
Publikováno v:
Microchimica Acta. 149:273-279
An analytical approach to FIA amperometric determination of molybdenum based on the well-known catalytic reaction involving the oxidation of iodide by hydrogen peroxide is proposed. The indirect method involves measurements of triiodide at a glassy c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::00138ee6bbe47292a618ac7466f61bff
https://doi.org/10.1007/s00604-004-0313-4
https://doi.org/10.1007/s00604-004-0313-4
Publikováno v:
Electroanalysis. 15:733-738
The electrochemical properties of gold electrode surfaces modified by molybdenum oxide films intercalated with platinum microparticles have been described. The incorporation of Pt microparticles at the oxide film was characterized by PIXE (particle i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f50a0615e0fc9993f245c452eab5ce68
https://doi.org/10.1002/elan.200390092
https://doi.org/10.1002/elan.200390092
Publikováno v:
Sensors and Actuators B: Chemical. 87:41-46
The potentiometric response of glassy carbon (GC) electrodes pretreated by cycling consecutively the potential in the range 0.2 to −0.8 V was examined. The electrochemical treatment creates microchannels at the electrode surface through which catio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1f3009b928d18ba31b435d81650f302
https://doi.org/10.1016/s0925-4005(02)00201-0
https://doi.org/10.1016/s0925-4005(02)00201-0
Publikováno v:
Talanta. 57:375-381
An indirect amperometric method for the determination of sulfite in a flow injection configuration is described. The procedure is based on the amperometric measurement (E=0.1 V) of Cu(III) chemically generated by the S(IV) induced oxidation of Cu(II)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f18a3a3e0e16d13164cc05bc49f93013
https://doi.org/10.1016/s0039-9140(02)00039-5
https://doi.org/10.1016/s0039-9140(02)00039-5
Publikováno v:
Journal of Electroanalytical Chemistry. 499:176-181
The electrochemical behaviour of nitric oxide (NO) at a glassy carbon electrode modified by a thin layer of electrodeposited molybdenum oxide has been examined in phosphate buffer (pH 7.4). The data show that the anodic current for the oxidation of N
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1b5ae569568611dccab2dd82d103127
https://doi.org/10.1016/s0022-0728(00)00495-2
https://doi.org/10.1016/s0022-0728(00)00495-2
Publikováno v:
Electroanalysis. 13:155-160
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2aca8430a2d268fd630dfbc2df017dd9
https://doi.org/10.1002/1521-4109(200102)13:2<155::aid-elan155>3.0.co
https://doi.org/10.1002/1521-4109(200102)13:2<155::aid-elan155>3.0.co
Autor:
Mauro Bertotti, Luis Kosminsky
Publikováno v:
Journal of Electroanalytical Chemistry. 471:37-41
The electroreduction of iodate at glassy carbon discs modified by molybdenum oxide films in sulfuric acid medium is discussed. Studies carried out in the pH range 1.8–3.0 with Mo(VI) in solution show that at more acidic conditions the catalytic res
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d130b421628097f0ba5971dccb0e6136
https://doi.org/10.1016/s0022-0728(99)00246-6
https://doi.org/10.1016/s0022-0728(99)00246-6
Autor:
Luis Kosminsky, Mauro Bertotti
Publikováno v:
Electroanalysis. 11:623-626
A method for the amperometric determination of iodate in a flow injection configuration is described. The electroreduction of the analyte occurs at a glassy carbon disk electrode modified by a molybdenum oxide layer electrochemically deposited, the f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c9370c538452e4c1f5b2ba6018111d0
https://doi.org/10.1002/(sici)1521-4109(199907)11:9<623::aid-elan623>3.0.co
https://doi.org/10.1002/(sici)1521-4109(199907)11:9<623::aid-elan623>3.0.co
Publikováno v:
Scopus-Elsevier
Journal of the Brazilian Chemical Society, Vol 14, Iss 5, Pp 713-721 (2003)
Journal of the Brazilian Chemical Society v.14 n.5 2003
Journal of the Brazilian Chemical Society
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Journal of the Brazilian Chemical Society, Volume: 14, Issue: 5, Pages: 713-721, Published: OCT 2003
Journal of the Brazilian Chemical Society, Vol 14, Iss 5, Pp 713-721 (2003)
Journal of the Brazilian Chemical Society v.14 n.5 2003
Journal of the Brazilian Chemical Society
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Journal of the Brazilian Chemical Society, Volume: 14, Issue: 5, Pages: 713-721, Published: OCT 2003
The oxidation of Cu(II) complexes with tetra, penta and hexaglycine in borate buffer aqueous solution, by dissolved oxygen is strongly accelerated by sulfite. The formation of Cu(III) complexes with maximum absorbances at 250 nm (e = 9000 mol-1 L cm-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::00d6be6f5bc56f0943fc2d08301f41a1
http://www.scopus.com/inward/record.url?eid=2-s2.0-18544397529&partnerID=MN8TOARS
http://www.scopus.com/inward/record.url?eid=2-s2.0-18544397529&partnerID=MN8TOARS
