title: Modification of hydrophobic sorbents by cobalt chloride in order to concentrate low molecular polar organic substances from the air for subsequent gas chromatographic determination.
metadata.name: dc.contributor.author
metadata.value: Rodinkov, O.V.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Zhuravleva, G.A.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Bugaichenko, A.S.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Viktorova, M.I.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Postnov, V.N.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Novikov, A.G.
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2016-04-08T16:17:01Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2016-04-08T16:17:01Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2015
metadata.lang: -
metadata.name: dc.identifier.issn
metadata.value: 0039-9140
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/2019
metadata.lang: -
metadata.name: dc.description
metadata.value: Studies were carried out using the equipment centers SPSU: Centre for innovative Technologies of Composite Nanomaterials and Chemistry Education Centre.
metadata.lang: en_GB
metadata.name: dc.description.abstract
metadata.value: The article presents a new method of modification of hydrophobic sorbents. To improve sorption pre-concentration of polar organic compounds in the air analysis, these sorbents are coated with cobalt chloride. This modification increases retention volume of lower alcohols by 5-10 fold as compared to that of unmodified sorbents and solves the problem of gas-chromatographic determination at 1-2 ppb (micrograms / m3) by using the most common flame ionization detector. It should be noted that the modification of hydrophobic sorbents by cobalt chloride has little influence on their porosimetry parameters (specific surface area, proportions of meso- and micropores) and modified sorbents are capable of retaining hydrophobic nonpolar and weakly polar analytes as well as original unmodified sorbents. Thus, a fairly simple procedure leads to a large positive effect.
metadata.lang: en_GB
metadata.name: dc.description.sponsorship
metadata.value: The authors thank Russian Foundation for Basic Research (project 15-03-05082a.
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: en
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: Elsevier
metadata.lang: en_GB
metadata.name: dc.relation.ispartofseries
metadata.value: Talanta;144
metadata.lang: -
metadata.name: dc.subject
metadata.value: Cobalt chloride
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: Pre-concentration
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: Air analysis
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: Sorbents
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: Surface-layer polytetrafluoroethylene (PTFE)
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: Volatile organic compounds
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Modification of hydrophobic sorbents by cobalt chloride in order to concentrate low molecular polar organic substances from the air for subsequent gas chromatographic determination.
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: Modification_F.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/2019/1/Modification_F.pdf
resources.format: Adobe PDF
resources.size: 249,93 kB