Zobrazeno 1 - 10
of 70
pro vyhledávání: '"N. A. Kolpakova"'
Autor:
T. N. Vasilkova, T. B. Baklaeva, G. A. Vasilkova, Yu.A. Maslakova, D. N. Isakova, S. V. Platitsyna, N. V. Kolpakova
Publikováno v:
Medical Science And Education Of Ural. 23:7-11
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4480d6a6bb7125d17ff818b813d542a8
https://doi.org/10.36361/18148999_2022_23_2_7
https://doi.org/10.36361/18148999_2022_23_2_7
Autor:
A. V. Egoshina, N. A. Kolpakova
Publikováno v:
Journal of Analytical Chemistry. 76:1435-1437
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b226f1887c0f7c85da728198a5e4aac5
https://doi.org/10.1134/s1061934821120054
https://doi.org/10.1134/s1061934821120054
Autor:
E. N. Dyachenko, N. A. Kolpakova
Publikováno v:
Russian Chemical Bulletin. 66:1131-1137
The problems of choosing metal-modifier for the surface of graphite electrodes used in voltammetric methods for analysis of a series of elements in solutions are reviewed. The presence of the modifier enhances the sensitivity of determination of elem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e920ca7f994c9057f1a43aa620f1592
https://doi.org/10.1007/s11172-017-1866-9
https://doi.org/10.1007/s11172-017-1866-9
Autor:
T. S. Glyzina, N. A. Kolpakova
Publikováno v:
Journal of Analytical Chemistry. 64:1259-1263
Stripping voltammetry was used to determine bismuth(III) in raw gold ores. The effect of some matrix elements, Cu(II), Au(III), Pt(IV), Pd(II), etc. on the current of bismuth(III) electrooxidation was studied. The conditions the extraction of bismuth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ad0d2b09a473464d7571ac0c41e6930
https://doi.org/10.1134/s1061934809120107
https://doi.org/10.1134/s1061934809120107
Publikováno v:
Journal of Analytical Chemistry. 64:144-148
A procedure is developed for determining rhenium in gold-containing ores by X-ray fluorescence spectrometry. The adsorption preconcentration of perrhenate ions on activated charcoal is studied. It is found that the pH of the solution, the time of exp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cc49bc55324206710a3725bce85651b3
https://doi.org/10.1134/s1061934809020099
https://doi.org/10.1134/s1061934809020099
Publikováno v:
Journal of Analytical Chemistry. 64:44-47
The electroconcentration of gold(III) and palladium(II) on the electrode surface gives a binary alloy whose components are electrochemically oxidized at almost the same potential. Two methods were proposed for the separation of overlapping anodic pea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::951ec2463930c9efeb4f69e709597fc0
https://doi.org/10.1134/s1061934809010092
https://doi.org/10.1134/s1061934809010092
Autor:
L. G. Gol’ts, N. A. Kolpakova
Publikováno v:
Journal of Analytical Chemistry. 62:377-381
The studies on the electropreconcentration of ReO 4 − from 1 M HNO3 solutions have shown that, at −0.8 V, ReO 4 − is reduced to ReO2 and Re0 at the surface of an impregnated graphite electrode. Two anodic peaks were observed in the voltammogram
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b81082800b0dd750a19434f0d9ee87a7
https://doi.org/10.1134/s1061934807040156
https://doi.org/10.1134/s1061934807040156
Autor:
N. N. Kolpakova, P. Czarnecki
Publikováno v:
Journal of Experimental and Theoretical Physics. 102:949-957
The Pb(Mg1/3Nb2/3)O3 (PMN) relaxor system is used as an example to analyze the temperature dependences of the low-frequency dielectric permitivity (ɛ′(T)) measured during zero-field heating (ZFH) from T = 10 K to T = 300 K after using different fi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ea1d52534ea46f967ad28d1fae6f46bf
https://doi.org/10.1134/s1063776106060082
https://doi.org/10.1134/s1063776106060082
Publikováno v:
Ferroelectrics. 318:155-161
The dielectric response (100 Hz to 6 MHz), relaxation-time distribution, dielectric hysteresis loops and polarization obtained from pyroelectric current have been studied in the Cd 2 Nb 2 O 7 pyrochlore the ferroelectric (FE) state of which is frustr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db9cb222215f269b27ed1f4b7396bbcd
https://doi.org/10.1080/00150190590966270
https://doi.org/10.1080/00150190590966270
Autor:
N. N. Kolpakova, P. Czarnecki
Publikováno v:
Journal of Experimental and Theoretical Physics. 100:964-970
The temperature dependence of the residual polarization of the nonergodic relaxation state (NERS) obtained from the measurements of pyroelectric current during zero-field heating (ZFH) in the temperature interval from 10 to 295 K is investigated for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a88e861bd63fe1e1fdfe19606d40f654
https://doi.org/10.1134/1.1947319
https://doi.org/10.1134/1.1947319