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Characteristics of solid amalgam electrodes different from HMDE
Josypčuk, Bohdan ; Navrátil, Tomáš
In the contribution are shown the results of experiments realized with solid amalgam electrodes containing, apart from mercury, also Ag, Cu, Ir, Au, Bi, or Cd. These results differ from those obtained with the hanging mercury drop electrode (HMDE). In some cases the solid amalgam electrodes enable the study of properties of compounds, which can not be observed on HMDE, usually due to the anodic dissolution of mercury. Anodic stripping voltammetry of Zn(II), Cd(II), Pb(II), Cu(II), and Fe(III), cathodic stripping voltammetry of adenine, guanine, phytochelatins, sulfides, and catalytic processes in presence of hydrogen peroxide, alcohols and Os-modified DNA, were studied with the working amalgam electrodes.
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Multichannel device for electrochemical measurements
Navrátil, Tomáš ; Josypčuk, Bohdan
The article presents newly constructed 8-channel device, which enables sequential analysis realized on up to 8 different or equal sensors. The device is computer controlled, using PCI interface card. Special 8-chanel sensor, consisting of 8 various solid electrodes (e.g., 5 solid amalgam electrodes, and one electrode of each, glassy carbon, platinum, and gold) can be connected to this device.
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Voltammetric Determination of Cytostatic Using Silver Solid Amalgam Electrode
Barek, J. ; Fischer, J. ; Konečná, B. ; Kratzer, J. ; Hrušková, M. ; Navrátil, Tomáš ; Novotný, Ladislav ; Josypčuk, Bohdan ; Zima, J.
Modern polarographic and voltammetric methods at mercury meniscus-modified silver solid amalgam electrode (m-AgSAE) were proved to be suitable for the determination of a number of polarographically active cytostatic drugs. The voltammetric determination of 6-mercaptupurine (6-MP), 6-thioguanine (6-TG), Mitoxantrone (MX, CAS No.: 65271-80-9, CAS. Name: 1,4-Dihydroxy-5,8-bis[{2-[(2-hydroxyethyl)amino]ethyl}amino]-9,10-anthracenedione), and Doxorubicin (DR, CAS No.: 23214-92-8, CAS Name: (8S-cis)-10-[(3-Amino-2,3,6-trideoxy--L-lyxohexapyranosyl)oxy] - 7, 8, 9, 10 - tetrahydro-6, 8, 11-trihydroxy-8-(hydroxyacetyl)-1-methoxy-5,12-naphtacenedione) were studied.
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