Zobrazeno 1 - 10
of 46
pro vyhledávání: '"Andrzej S. Baranski"'
Autor:
Aliaksei Boika, Andrzej S. Baranski
Publikováno v:
Analytical Chemistry. 84:1353-1359
Ultrahigh frequency voltammetry involves low scan rate voltammetric measurements with microelectrodes polarized by high-frequency large-amplitude alternating potential. The method provides a simple means for studying electrothermal and dielectrophore
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6068c0f1d9d275c6156455103629d1fb
https://doi.org/10.1021/ac202234v
https://doi.org/10.1021/ac202234v
Autor:
Aliaksei Boika, Andrzej S. Baranski
Publikováno v:
Electrochimica Acta. 56:7288-7297
In this paper we describe numerical simulations of a number of physico-chemical phenomena observed at disk microelectrodes polarized with a high frequency ac waveform. These phenomena include resistive heating of an electrolyte solution surrounding a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::529d1c2d37e0fdf06db67448c40da663
https://doi.org/10.1016/j.electacta.2011.06.050
https://doi.org/10.1016/j.electacta.2011.06.050
Autor:
Aliaksei Boika, Andrzej S. Baranski
Publikováno v:
Analytical Chemistry. 82:8137-8145
We examined the effect of a large-amplitude high-frequency alternating potential modulation on direct currents associated with irreversible, quasi-reversible, and reversible electron-transfer processes occurring at microelectrodes under voltammetric
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e682160bba302b33b458f69ec8d612a
https://doi.org/10.1021/ac1014222
https://doi.org/10.1021/ac1014222
Autor:
Aliaksei Boika, Andrzej S. Baranski
Publikováno v:
Analytical Chemistry. 80:7392-7400
When a disk microelectrode is polarized with an alternating potential of very high frequency (0.1-2 GHz) and a high amplitude (up to 2.8 V rms), the electrode is heated up, and at the same time, a very intense electric field is created around the ele
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::656e5a90d7c9f35a2f1a8dad986981df
https://doi.org/10.1021/ac801094s
https://doi.org/10.1021/ac801094s
Publikováno v:
Electrochimica Acta. 52:854-862
A relationship between the tip response and the tip-to-substrate separation distance was investigated under alternating current scanning electrochemical microscopy (AC-SECM) conditions. For insulating substrates only negative AC feedback was observed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f8109c147ae771f0060477af4a9df947
https://doi.org/10.1016/j.electacta.2006.06.020
https://doi.org/10.1016/j.electacta.2006.06.020
Publikováno v:
Analytical Chemistry. 78:6747-6755
Cyclic chronopotentiometry provides a very simple detection method, which may be particularly useful in capillary electrophoresis (CE) and microseparation systems. It has been shown that for disk microelectrodes it is possible to define safe reductio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5eea8c2832c1a6535af3ca16c16654eb
https://doi.org/10.1021/ac060331f
https://doi.org/10.1021/ac060331f
Publikováno v:
Journal of Electroanalytical Chemistry. 463:200-211
Convolutive voltammetry was employed in studies of the kinetics of sulfide ion adsorption at copper amalgam and mercury electrodes. Measurements were carried out for low electrode coverages to minimize the effect of the lateral interaction energy, an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b97ce23b766a727faeb1799d334e981
https://doi.org/10.1016/s0022-0728(98)00455-0
https://doi.org/10.1016/s0022-0728(98)00455-0
Autor:
Krzysztof Winkler, Andrzej S. Baranski
Publikováno v:
Journal of Electroanalytical Chemistry. 453:29-38
Oxidation of ferrocene (Fc) and reduction of p-dicyanobenzene (DCB) were examined by ac-voltammetry in benzene solutions containing tetra-n-hexylammonium perchlorate at a hemispherical (Hg) and a disk (Au) μm-electrode, respectively. The specific co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d984f33578dfe99eef9f0009e6a2dbda
https://doi.org/10.1016/s0022-0728(98)00190-9
https://doi.org/10.1016/s0022-0728(98)00190-9
Publikováno v:
Analytical Chemistry. 70:2895-2901
A method for studying impedance spectroscopy of micrometer-sized electrodes in the frequency range from 5 kHz to 5 MHz has been developed and tested. Details of the electronic circuit and the data processing method are provided. Since the method invo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::07abe930657f9b57223468a57ba3fb33
https://doi.org/10.1021/ac9712456
https://doi.org/10.1021/ac9712456
Publikováno v:
Journal of Chromatography A. 811:181-192
A number of experimental approaches that should offer improved S/N in electrochemical detection were evaluated and compared. In addition, to evaluate and optimize the electrochemical response behavior of analytes under actual CE conditions, an on-lin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20daf22c4ef3a0b7ba6d97e945824bf2
https://doi.org/10.1016/s0021-9673(98)00283-0
https://doi.org/10.1016/s0021-9673(98)00283-0