Zobrazeno 1 - 10
of 259
pro vyhledávání: '"Oleg A. Shpigun"'
Autor:
Valentina V. Levkina, Anton G. Kalmykov, Tatsiana N. Henarava, Margarita S. Tikhonova, Andrey V. Pirogov, Oleg A. Shpigun, Andrei Yu. Bychkov
Publikováno v:
Georesursy, Vol 21, Iss 4, Pp 95-102 (2019)
The work presents the comparison results of the quantitative and qualitative composition of hydrocarbon compounds that can be obtained as a result of secondary and tertiary methods of influence on organic-rich rocks (on the example of the Bazhenov Fo
Externí odkaz:
https://doaj.org/article/e434fc216de047d5bdc848c0b48ee104
Autor:
M. I. Emelyanov, А. A. Konstantinov, Oleg A. Shpigun, E. S. Markova, A. V. Pirogov, M. V. Popik, A. O. Belushenko, I. V. Koznyakov, A. A. Sadovnikova
Publikováno v:
Industrial laboratory. Diagnostics of materials. 87:5-10
The possibility of using a new graphene-based carbon monolith for searching new oil deposits or branches adjacent to the already registered oilfields by areal geochemical survey is demonstrated. The material has been developed at the Faculty of Chemi
Publikováno v:
Journal of Analytical Chemistry. 76:1163-1171
A simple, rapid, and sensitive method is developed for the simultaneous determination of hydrazine, methylhydrazine, and 1,1-dimethylhydrazine in waters based on precolumn derivatization with benzaldehyde and the determination of the resulting produc
Publikováno v:
Moscow University Chemistry Bulletin. 76:75-84
Novel stationary phases based on aminopropyl silica gel covalently modified with poly(ethylene glycol) (PEG) with different matrix-to-polymer mass ratios are obtained. The chromatographic properties of the adsorbents are studied using the Tanaka test
Publikováno v:
Inorganic Materials. 56:1353-1361
We develop a method on the basis of high-performance liquid phase chromatography–mass spectrometry (HPLC-MS) for determination of triterpene glycosides in ginseng extracts. In contrast to procedures based on HPLC with ultraviolet detection (HPLC-UV
Publikováno v:
Industrial laboratory. Diagnostics of materials. 86:14-23
Publikováno v:
Journal of Analytical Chemistry. 75:930-935
An adsorbent for HPLC, silica doubly layer-by-layer modified with 6,10-ionene and dextran sulfate, is obtained. The adsorbent has both hydrophobic and hydrophilic and ion-exchange properties (because of the presence of hydrophobic anions and cations
Autor:
Andrey Stavrianidi, Polina Turova, P. A. Kaplitsin, I. I. Pikovskoi, A. S. Druzhinina, D. V. Ovchinnikov, O. Yu. Khoroshev, Bogolitsyn Konstantin G, Oleg A. Shpigun, Anastasia Parshina
Publikováno v:
Journal of Analytical Chemistry. 75:633-639
The extraction of polyphenol component of arctic brown algae of the Fucus vesiculosus type and the subsequent fractionation of the extract by column chromatography on a Sephadex LH-20 adsorbent are carried out. The obtained fractions are characterize
Autor:
Andrey V. Pirogov, Oleg A. Shpigun
Publikováno v:
Journal of Analytical Chemistry. 75:139-147
The review surveys the works of staff members, students, and graduate students of the Divison of Analytical Chemistry, Department of Chemistry, Lomonosov Moscow State University on the use of microemulsions in liquid and electrokinetic chromatography
Autor:
Ekaterina Markova, Andrey V. Pirogov, Arina N. Furman, Aleksandr S. Popov, Oleg A. Shpigun, Mikhail V. Popik, Pavel N. Nesterenko, Andrey A. Stepashkin
Publikováno v:
SSRN Electronic Journal.