Zobrazeno 1 - 10
of 49
pro vyhledávání: '"D. I. Falev"'
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
Abstract Sixteen priority polycyclic aromatic hydrocarbons (PAHs) were qualitatively and quantitatively assessed by high-performance liquid chromatography with fluorescence detection in snow samples collected at 46 sites of Arkhangelsk as a world’s
Externí odkaz:
https://doaj.org/article/02fdc33d86494b0383f59e9a30dda890
Publikováno v:
Journal of Analytical Chemistry. 76:1624-1634
Autor:
D. I. Falev, Aleksandr Yu. Kozhevnikov, Artem V. Belesov, D. G. Chukhchin, Anna V. Faleva, E. V. Novozhilov
Publikováno v:
International Journal of Biological Macromolecules. 166:913-922
In this article, the functional group composition of the spruce (Picea abies) and birch (Betula pendula) phloem lignin is described. The features of the chemical structure were studied by analyzing dioxane lignin using the elemental analysis, UV-Vis,
Autor:
E. N. Rakhmatullina, D. I. Falev, Nikolay V. Ul'yanovskii, O. Yu. Khoroshev, E. A. Anikeenko, Dmitry S. Kosyakov
Publikováno v:
Journal of Analytical Chemistry. 75:1749-1757
An approach based on the use of carbon matrices is proposed to obtain MALDI mass spectra of the most important secondary plant metabolites, pentacyclic triterpenoids (PCTs). The best results were obtained using carboxylated carbon nanotubes as a matr
Autor:
D. I. Falev, S. A. Pokryshkin, S. L. Shestakov, Anna V. Faleva, Aleksandr Yu. Kozhevnikov, Julia A. Popova
Publikováno v:
Journal of Wood Chemistry and Technology. 40:178-189
Along with cellulose, lignin is one of the most common polymers of plant origin. Numerous studies show that the complex and irregular structure of lignin is still unknown. First of all, the existin...
Publikováno v:
Phytochemical analysis : PCAREFERENCES. 32(3)
Introduction Pentacyclic triterpenoids (PCTs) are secondary plant metabolites. They are of exceptional interest as biologically active substances and raw materials for a wide range of medications. Thus, the development of a methodology for rapid scre
Autor:
Nikolay V. Ul'yanovskii, D. I. Falev, Dmitry S. Kosyakov, O. I. Pokrovskii, D. V. Ovchinnikov, Bogolitsyn Konstantin G
Publikováno v:
Russian Journal of Physical Chemistry A. 92:793-798
The Nucleodur HILIC zwitterionic stationary phase was characterized by linear solvation energy relationship (LSER) analysis in the supercritical fluid chromatography mode. It was shown that the main contribution to retention is made by hydrogen bondi
Publikováno v:
Russian Chemical Bulletin. 66:875-881
Natural pentacyclic triterpenes were extracted from birch bark with subcritical solvents. The influence of the solvent nature, temperature, and the number of extraction cycles on the efficiency of the process was studied. Using methanol at 100 °С p
Autor:
O. I. Pokrovskiy, D. V. Ovchinnikov, Bogolitsyn Konstantin G, Dmitry S. Kosyakov, D. I. Falev, Nikolay V. Ul'yanovskii
Publikováno v:
Russian Journal of Physical Chemistry B. 10:1062-1071
Derivatives of benzoic and cinnamic acids are secondary metabolites of plants, widely distributed in nature and possessing biological activity. Supercritical fluid chromatography (SFC) is shown to provide a high performance separation of nine most im
Autor:
Alexander Yu. Kozhevnikov, Mark S. Popov, D. I. Falev, Nikolay V. Ul'yanovskii, Dmitry S. Kosyakov, I. I. Pikovskoi, D. E. Lakhmanov
Publikováno v:
Science of The Total Environment. 726:138483
An ingress of highly toxic rocket fuel 1,1-dimethylhydrazine (UDMH) and its transformation products into environment represents a serious negative impact on the ecosystem, as well as human health. The present research demonstrates the first data on t