Chemical variations of concentration fluctuations in the elemental composition of living organisms

In this paper, concentration fluctuations in the content of chemical elements in living objects are considered. They describe the periodicity of the atoms’ properties with an increase in their atomic number, according to the Periodic Law of D.I. Mendeleev. The use of the Periodic Law in various fields of science and technology is increasingly being used. The major interest is the construction of periodic dependences of changes in certain parameters of the systems under study with an increase in the atomic number of the element that determines their structure and organization, as well as the prediction on this basis of properties and their behavior when interacting with other systems. Establishing periodic patterns of distribution of chemical elements in living organisms is the most urgent task of modern biological science. The objects of study in this work were human hair, animal hair, the ground part of plants, fish scales and bird feathers. Sampling was carried out in the regions of the Tomsk region. The studies were carried out in the laboratory of "Environmental Monitoring", which is part of the Tomsk Regional Center for Collective Use of the National Research Tomsk State University. The analyzes were carried out using a Grand spectrometer with a multichannel emission spectrum analyzer (MAES). New regularities in the distribution of chemical elements in biological systems have been established. It is shown that the periodic patterns of changes in the chemical composition of the living world as a whole are of the same type. Three main zones of chemical variations of the elements’ distribution for all studied living objects are identified, on average, limited by one or another S-element. The first zone is in the range from hydrogen to calcium; the second zone is from calcium to strontium, the third zone is from strontium to barium. In this case, the amplitude of concentration fluctuations with an increase in the atomic number of the element constantly decreases according to a close to exponential law. However, in the third zone, a characteristic dip is observed, which, apparently, is explained by ecological and climatic factors of the habitat. Contribution of the authors: the authors contributed equally to this article. The authors declare no conflicts of interests.

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