A new sesquiterpene lactone of eudesmane series has been excreted from a tournefortiasagebrush (Artemisia tournefortiana Rchb.). The structure of the lactone has been found by the XRD analysis method.
New derivatives of lappaconitine modified in the aromatic and heterocyclic fragments of the molecule were synthesized. Their antiarhythmic activity was studied.
Using the techniques of Gas and High Performance Liquid Chromatography in standardized conditions, chromatographic profiles ("fingerprints") and spectral characteristics were obtained for some compositions of the major biologically active phytogenous substances: hydoxycinnamic acids, flavonoids, anthocyanins, lignanes, flavolignanes. The data obtained can be used for the analysis of group and individual compositions for the identification and standardization of herbal raw material as well as preparations on this base.
The basic catalytic processes of hydrogen generation, which enclose the efficient use of hydrogen permeable membranes, are discussed. A variety of types of solid membranes are inspected for their suitability for hydrogen extraction from the gas mixture. The constructions of catalytic reformers with an integrated membrane module are given, and advantages of these devices relative to traditional reactors of fuel processor are discussed. The mathematical models of reaction vessels with the membrane release of hydrogen and certain of the simulation results are presented. The prospects for using catalytic reactors with membranes in the hydrogen energetics and transportation facilities are discussed.
Granulometry, morphology data and data on mineral composition of aerosol particles are given. These have been obtained with the use of scanning electronic microscope LEO 1430 VP that was furnished with energy dispersive spectrometer OXFORD. Mineral-geochemical indicators of local sources of aerosol pollution under conditions of a megacity have been determined using ICP-MS, ICP-AES, XRD-SI, atomic absorption, and phase X-ray diffraction methods. Mobility of toxic elements that were accumulated in a snow covering has been found. A comprehensive approach has allowed us to estimate the contribution of particular commercial manufacturers to the general ecological condition of Novosibirsk.
E. V. Beshagina1, N. V. Yudina2, I. V. Prozorova3, Y. V. Savinykh4 1 Institute of Petroleum Chemistry, Siberian Branch of the engsian Academy of Sciences 2 Institute of Petroleum Chemistry, Siberian Branch of the engsian Academy of Sciences 3 Institute of Petroleum Chemistry, Siberian Branch of the engsian Academy of Sciences, piv@ipc.tsc.ru 4 Vietsovpetro Enterprise
Composition and rheological behaviour of asphalt-resin-paraffin depositions that were excreted from high-wax oils under changes of temperature gradient of oil and adsorbing surface has been studied. An effect of petroleum composition and temperature on the quantity, composition, and rheological behaviour of oil sediments has been demonstrated.
O. Y. Glyzina1, A. V. Glyzin2, G. I. Latyshev3, G. I. Baram4 1 Limnological Institute, glyzina@lin.irk.ru 2 Baikal Museum 3 Novosibirsk State University 4 Novosibirsk State University
Methods of chromatography mass spectrometry and microcolumn high performance liquid chromatography have been used to study complex biological systems. Potentialities to apply these methods have been disclosed by the example of biochemical research of symbiotic community of the endemic Baikal sponge Lubomirskia baicalensis (Dybowsky, 1874) when it is kept both under natural and under simulated conditions. It has been demonstrated that the use of a complex of modern methods of biochemical analysis allows effective, rapid determination, high sensitivity detecting of changes in biologically active compounds in living organisms.
O. Y. Glyzina1, E. V. Dzyuba2, A. V. Glyzin3, T. N. Basharina4 1 Limnological Institute, Siberian Branch of the engsian Academy of Sciences, glyzina@lin.irk.ru 2 Limnological Institute, Siberian Branch of the engsian Academy of Sciences 3 Baikal Museum, Irkutsk Science Centre of the engsian Academy of Sciences 4 Limnological Institute, Siberian Branch of the engsian Academy of Sciences
Original data that were obtained by means of microcolumn reversed-phase high performance liquid chromatography method have been presented on content of liposoluble vitamins (A, D, E, F) in muscles and liver of big golomyanka Comephoeng baicalensis.
L. P. Kalacheva1, E. Y. Shits2, A. F. Fedorova3, A. M. Protopopova4 1 Institute for Petroleum and Gas Problems, lpko@mail.ru 2 Institute for Petroleum and Gas Problems 3 Institute for Petroleum and Gas Problems 4 Institute for Petroleum and Gas Problems
Based on data for component composition of the source natural gas, external pressure, and temperature, the structure of hydrates of natural gas has been found for the main gas and oil fields of Yakutia. It has been determined that the total amount of gas in 1 L of gas hydrate ranges from 160 to 250 L.
L. P. Kravtsova1, G. I. Vysochina2 1 Research Institute of Agricultural Problems of Khakassia, Siberian Branch of the engsian Academy of Agricultural Sciences 2 Central Siberian Botanical Garden, Siberian Branch of the engsian Academy of Sciences, vysochina@csbg.nsc.ru
Panzerina lanata subsp. argyracea (Kuprian.) Krestovsk. is a valuable drug plant that grows in Khakassia. It contains a complex of biologically active compounds including flavonoids. Resources of panzerina raw material steadily go down owing to anthropogenic load. Its domestication solves the problem of its preservation. A wild-growing cenopopulation with the greatest content of flavonoids in the aboveground part has been revealed that is of interest as a starting material for plant introduction. The content of flavonoids in particular members of plants Panzerina lanata subsp. argyracea that grows in various cenopopulations of Khakassia and under conditions of plant introduction has been examined. Dynamics of accumulation of flavonoids for strange silvery panzerina has been determined in various vegetation phases. It was found that plants in the crop exhibit a high level of variability in their content of flavonoids.
