Zobrazeno 1 - 10
of 25
pro vyhledávání: '"N. A. Chivireva"'
Publikováno v:
Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ, Vol 24, Iss 4(68), Pp 6-22 (2018)
On the basis of literary sources data the questions of identification and determination of Germanium chemical forms in various objects are considered. It is marked that this area of analytical chemistry of Germanium (in comparison with many other ele
Externí odkaz:
https://doaj.org/article/038e74f0574645c096d861f02e3edd94
Publikováno v:
Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ, Vol 21, Iss 4(60), Pp 6-20 (2016)
Speciation analysis is considered to be one of actual trends of modern analytical chemistry. Based on the numerous monographs and reviews its general principles and features are reviewed. It was noticed that increasing of the interest in the speciati
Externí odkaz:
https://doaj.org/article/f0cd840d3f9e4808a9e9571833dda4ea
Autor:
V. P. Antonovich, I. I. Zseltvay, K. K. Tsymbalyuk, D. V. Bolshoy, E. G. Pykhteeva, N. A. Chivireva, I. V. Stoyanova, O. I. Zseltvay
Publikováno v:
Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ, Vol 20, Iss 4(56), Pp 28-41 (2015)
As part of hydrochemical monitoring of Kuyalnic estuary in the initial period of its filling by the Odessa Bay water (December 2014 – May 2015) chemical analysis of samples of sea water, brine, and estuary peloids on the content of a number of basi
Externí odkaz:
https://doaj.org/article/aa96c9292b73470ab35922e0c939bab6
Autor:
N. A. Chivireva, O. A. Sakharova, I. V. Stoyanova, A. O. Stoyanov, S. A. Tarasenko, S. V. Toporov
Publikováno v:
Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ, Vol 15, Iss 3, Pp 107-113 (2015)
It was found that the synthetic fluorapatite (Ca(Sr)10(PO4)6F2), which did not dissolve at the mixture of hydrochloric acid and sodium citrate, fluoride can be determined ionometrically after dissolution in the reagents forming complexes with metal c
Externí odkaz:
https://doaj.org/article/f2b53a8bc8ec4375aa676cb9d0e22b6c
Autor:
V. F. Zinchenko, I. R. Magunov, N. A. Chivireva, S. V. Stoyanova, V. E. Chygrynov, O. S. Mazur, Ie. V. Timukhin, O. V. Mozkova, G. I. Kocherba
Publikováno v:
Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ, Vol 19, Iss 1(49), Pp 22-31 (2015)
The structure and properties of film-forming material ZnS containing oxide impurity are studied. Methods of the chemical analysis and spectroscopic research of products of exchange reactions establish the content of ZnO at level of 3-4 % mass, and al
Externí odkaz:
https://doaj.org/article/ed2aa36c92ef47ae8c683e0d35a213af
Publikováno v:
Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ, Vol 17, Iss 4(44), Pp 15-20 (2014)
The techniques of direct and indirect spectrophotometric determination of aviovalent forms of cerium in the samples of nanocrystalline ceria (NDC) are developed. Almost complete dominance Ce (IV) in all samples NDC was determined.
Externí odkaz:
https://doaj.org/article/fa43053010094967a5f4abcf76ccc28e
RATIONALE OF KUYALNIK ESTUARY FILLING ENVIRONMENTAL SAFETY BY THE BLACK SEA WATERS. CHEMICAL ASPECTS
Autor:
V. P. Antonovich, I. I. Zheltvay, N. A. Chivireva, I. V. Stoyanova, O. I. Zheltvay, A. O. Stoyanov, K. K. Tsymbalyuk
Publikováno v:
Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ, Vol 18, Iss 3(47), Pp 16-27 (2014)
It was found that currently sulphate and calcium ions content in Kuyalnik brine close to the solubility product of CaSO4. If brine will not by dilute precipitation of gypsum may be expect in prospectstive. It is shown that the dilution of the Kuyalni
Externí odkaz:
https://doaj.org/article/1bb3f3e65152448fbda456f38faf7d37
Autor:
V. F. Zinchenko, Іe. V. Timukhin, O. G. Eremin, N. A. Chivireva, V. E. Chygrynov, O. V. Mozkova, G. I. Kocherba
Publikováno v:
Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ, Vol 18, Iss 2(46), Pp 41-48 (2014)
The structure and properties of film-forming material MgF2 containing oxide impurity are studied. Material shows a low level of adaptability to manufacture in the course of the thermal evaporation in vacuum and operational parameters of received coat
Externí odkaz:
https://doaj.org/article/382387d2fcd342d09db73c3df782e05e
Publikováno v:
Odesa National University Herald. Chemistry. 27:5-12
As part of the study of the solubility of lanthanide fluorides in salt melts, a study of the EuF3-NaCl-KCl system (upper and bottom parts) was carried out. This system is of particular interest due to the fact that Europium has two oxidation states (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a77e2c7bbaa63e27b40b9a0ffd188646
https://doi.org/10.18524/2304-0947.2022.3(83).268605
https://doi.org/10.18524/2304-0947.2022.3(83).268605
Autor:
N. O. Chivireva, G. V. Volchak, I. V. Stoianova, V. F. Zinchenko, P. G. Doga, O. G. Ieriomin, O. V. Stamikosto
Publikováno v:
Odesa National University Herald. Chemistry. 26:26-36
Redox interactions between the components of the SmF3-CeF3 and SmF3-CeF3-NaCl-KCl systems have been established by IR transmission spectroscopy, diffuse reflectance electron spectroscopy and luminescence spectroscopy. A significant decrease in the tr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4bca8948a5a4ec8963df3d1791769901
https://doi.org/10.18524/2304-0947.2021.1(77).226135
https://doi.org/10.18524/2304-0947.2021.1(77).226135