umu.sePublikationer
Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Breakthrough during air sampling with polyurethane foam: What do PUF 2/PUF 1 ratios mean?
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Kemiska institutionen. (EcoChange)
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Kemiska institutionen. (EcoChange)
2018 (Engelska)Ingår i: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 192, s. 267-271Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Frontal chromatography theory is applied to describe movement of gaseous semivolatile organic compounds (SVOCs) through a column of polyurethane foam (PUF). Collected mass fractions (FC) are predicted for sample volume/breakthrough volume ratios (τ = VS/VB) up to 6.0 and PUF bed theoretical plate numbers (N) from 2 to 16. The predictions assume constant air concentrations and temperatures. Extension of the calculations is done to relate the collection efficiency of a 2-PUF train (FC1+2) to the PUF 2/PUF 1 ratio. FC1+2 exceeds 0.9 for PUF 2/PUF 1 ≤ 0.5 and lengths of PUF commonly used in air samplers. As the PUF 2/PUF 1 ratio approaches unity, confidence in these predictions is limited by the analytical ability to distinguish residues on the two PUFs. Field data should not be arbitrarily discarded because some analytes broke through to the backup PUF trap. The fractional collection efficiencies can be used to estimate air concentrations from quantities retained on the PUF trap when sampling is not quantitative.

Ort, förlag, år, upplaga, sidor
Elsevier, 2018. Vol. 192, s. 267-271
Nyckelord [en]
Air sampling, Semivolatile organic compounds, Polyurethane foam, Frontal chromatography, Collection efficiency
Nationell ämneskategori
Kemi
Identifikatorer
URN: urn:nbn:se:umu:diva-141454DOI: 10.1016/j.chemosphere.2017.10.152ISI: 000418313900030PubMedID: 29107878OAI: oai:DiVA.org:umu-141454DiVA, id: diva2:1154828
Tillgänglig från: 2017-11-06 Skapad: 2017-11-06 Senast uppdaterad: 2018-06-09Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas i DiVA

Övriga länkar

Förlagets fulltextPubMed

Personposter BETA

Bidleman, Terry F.Tysklind, Mats

Sök vidare i DiVA

Av författaren/redaktören
Bidleman, Terry F.Tysklind, Mats
Av organisationen
Kemiska institutionen
I samma tidskrift
Chemosphere
Kemi

Sök vidare utanför DiVA

GoogleGoogle Scholar

doi
pubmed
urn-nbn

Altmetricpoäng

doi
pubmed
urn-nbn
Totalt: 284 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf