title: Fractionation of polycyclic aromatic hydrocarbons at geochemical barriers
metadata.name: dc.contributor.author
metadata.value: Khaustov, Aleksandr P.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Redina, Margarita M.
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2021-06-01T15:07:27Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2021-06-01T15:07:27Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2021-03
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Khaustov, A. P., Redina, M. M. (2021). Fractionation of polycyclic aromatic hydrocarbons at geochemical barriers. Vestnik of Saint Petersburg University. Earth Sciences, 66 (1), 123–143.
metadata.lang: en_GB
metadata.name: dc.identifier.other
metadata.value: https://doi.org/10.21638/spbu07.2021.108
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/29086
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: The purpose of the study was to identify patterns of fractionation at geochemical barriers
  (GCB) of associations of marker compounds — polycyclic aromatic hydrocarbons (PAH).
  Based on thermodynamic parameters, the throughput of GCB in geochemical systems (GCS)
  in relation to organic substances at the molecular level is analyzed. PAHs are very informative
  indicators of the properties of GCB (up to singular surfaces). The processes of migration and
  selective penetration through GCB were examined for 15 PAHs from the list of priority pollutants
  recommended by the US Environmental Protection Agency (widely used in the world
  EPA list): Naphthalene (Naph), acenaphthene (Ace), Fluorene (Flourene), Phenanthrene
  (Phen), Anthracene (An), Fluoranthene (Flu), Pyrene (Py), Benzo(a)Anthracene (BaA),
  Chrysene (Chr), Benzo(b)Fluoranthene (BbFlu), Benzo(k)fluoranthhene (BkFlu), Benzo(a)
  pyrene (BaP), benzo(ghi)perylene (Bghi), Dibenzo(a, h) anthracene (DbA), Indeno(1,2-cd)
  pyrene (Ip). Being geochemical markers, these compounds can accumulate on barriers and
  selectively penetrate through them, making them especially important objects of study. Despite
  numerous studies, these mechanisms of mass transfer have not been sufficiently studied.
  The types of GCB have been identified in terms of their permeability to PAHs. It is shown that
  the functions of GCB in systems are much more significant and consist not only of the separation
  of systems from the external environment and the regulation of mass transfer. The above
  models of migration and accumulation are based on quantitative estimates, which makes the
  results more reasonable in comparison with the “conceptual” representations of the behavior
  of substances on GCB in most studies. Most importantly, the influence of the media contact
  time for establishing a stable state (stability of the migration of compounds) on GCB has been
  demonstrated.
metadata.lang: en_GB
metadata.name: dc.description.sponsorship
metadata.value: This work was financially supported by the Ministry of Education and Science of the Russian Federation
  under the Program for increasing the competitiveness of RUDN University “5-100” among the world’s
  leading research and educational centers for 2016–2020.
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: ru
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: St Petersburg State University
metadata.lang: en_GB
metadata.name: dc.relation.ispartofseries
metadata.value: Vestnik of St Petersburg University. Earth Sciences;Volume 66; Issue 1
metadata.lang: -
metadata.name: dc.subject
metadata.value: geochemical barriers
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: polycyclic aromatic hydrocarbons
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: living matter
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: entropy
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: classification
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: indication of transport processes
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: structure
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: evolution of geochemical systems
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Fractionation of polycyclic aromatic hydrocarbons at geochemical barriers
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: 123-143.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/29086/1/123-143.pdf
resources.format: Adobe PDF
resources.size: 3,29 MB