About mechanisms conditing the influence of modification of the isotope composition of media on the physical parameters of heterogeneous systems
UDC
538.9DOI:
https://doi.org/10.31429/vestnik-17-4-33-42Abstract
This paper considers an explanation of the physical mechanism of isotope fractionation associated with the predominance of a certain number of neutrons among nucleons and explaining the nonequilibrium accumulation of certain forms of stable isotopes of biogenic elements in heterogeneous systems. The change in the intensity of isotopic effects on natural heterogeneous systems occurs not only depending on the concentration of individual non-radioactive isotopes (25Mg, 29Si, 67Zn), but also their ability to form certain pairs (for example, 17O–2H, 18O–1H, 13C–18O, 12C–15N, 13C–2H, 15N–18O), through the chemical bonds of which, in addition to thermodynamic and kinetic isotope effects, neutron tunneling is realized, leading to the appearance of a paradoxical isotope effect caused by, probably by the neutron effect, which, together with the thermodynamic and kinetic components of the isotopic effect on the heterogeneous system, provides significant fluctuations in its functional activity when fractionation of a number of stable isotopes occurs. Therefore, the available facts of the selective accumulation of individual isotopes and their combinations in heterogeneous systems in comparison with the environment can serve as an indirect confirmation of the implementation of the neutron effect, which may be due to their interaction with each other.
Keywords:
isotopic composition, heterogeneous systems, oxygen, hydrogen, carbon, deuterium, neutron effectAcknowledgement
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Copyright (c) 2020 Elkina A.A., Yakovenko N.A., Baryshev M.G., Malyshko V.V., Lyasota O.M., Dzhimak S.S.
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