Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Mixed sorbent phases for thick film open tubular traps
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Analytical Chemistry.
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Analytical Chemistry.
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Analytical Chemistry.
2009 (English)In: Journal of Chromatographic Science, ISSN 0021-9665, E-ISSN 1945-239X, Vol. 47, no 4, 297-303 p.Article in journal (Refereed) Published
Abstract [en]

In this work, we present a technique for the preparation of tailor-made sorbent phases for thick film open tubular traps. Solid or liquid polymers are dispersed in a polydimethylsiloxane (PDMS) pre-polymer, which is cross-linked in situ after coating. The technique is evaluated by preparing thick film open tubular traps with PDMS containing solid or liquid poly(ethylene glycol) (PEG). A significant increase in retention for polar analytes is observed, even when only 7.5% PEG is present. The increase in retention for 3-chloro-1,2-propanediol is more than tenfold. The preparation method is simple and no solvents are required. Also, the concept provides great flexibility in terms of phase composition.

Place, publisher, year, edition, pages
2009. Vol. 47, no 4, 297-303 p.
Keyword [en]
CAPILLARY GAS-CHROMATOGRAPHY, SORPTIVE ENRICHMENT, THERMAL-DESORPTION, ORGANIC-COMPOUNDS, AQUEOUS SAMPLES, GASEOUS SAMPLES, TRACE ANALYSIS, FUSED-SILICA, EXTRACTION, WATER
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-8429ISI: 000265038000007Scopus ID: 2-s2.0-65949115715OAI: oai:DiVA.org:kth-8429DiVA: diva2:13745
Note
QC 20100922. Uppdaterad från Manuskript till Artikel (20100922).Available from: 2008-05-13 Created: 2008-05-13 Last updated: 2017-12-14Bibliographically approved
In thesis
1. Improved Techniques for Sampling and Sample Introduction in Gas Chromatography
Open this publication in new window or tab >>Improved Techniques for Sampling and Sample Introduction in Gas Chromatography
2008 (English)Licentiate thesis, comprehensive summary (Other scientific)
Abstract [en]

Sampling and sample introduction are two key steps in quantitative gas chromatography. In this thesis, a development of a previously described sampling technique as well as a novel concept for sample introduction in gas chromatography are presented. The thesis is based on two papers.

Paper I describes a method for preparing physically mixed polymers for use as sorbent phases in open tubular trapping of gaseous analytes. The concept is based on mechanical disintegration and mixing of solid or liquid poly(ethylene glycol), PEG, into poly(dimethylsiloxane), PDMS, in a straightforward manner. The resulting mixture exhibits a higher affinity towards polar analytes, as compared to pure PDMS.

Paper II describes a novel approach to liquid sample introduction with the split/splitless inlet, used in gas chromatography. Classical injection techniques struggle with discrimination of high boiling analytes and poor repeatability of the injected amount of analytes. The presented injection technique utilizes high voltage to obtain a spraying effect of the injected liquid. The spraying effect can be achieved with a cold needle, which is unprecedented for gas chromatographic injections. The cold needle spraying results in highly repeatable injections, free from discrimination of high boiling analytes.

Place, publisher, year, edition, pages
Stockholm: KTH, 2008. 32 p.
Series
Trita-CHE-Report, ISSN 1654-1081 ; 2008:40
Keyword
Gaskromatografi, Provupparbetning, Provintroduktion
National Category
Analytical Chemistry
Identifiers
urn:nbn:se:kth:diva-4744 (URN)978-91-7178-978-5 (ISBN)
Presentation
2008-05-28, E2, E-huset, Lindstedtsvägen 3, Stockholm, 10:00
Opponent
Supervisors
Note
QC 20101105Available from: 2008-05-13 Created: 2008-05-13 Last updated: 2010-11-05Bibliographically approved

Open Access in DiVA

No full text

Other links

Scopushttp://docstore.ingenta.com/cgi-bin/ds_deliver/1/u/d/ISIS/58726977.1/pres/jcs/2009/00000047/00000004/art00007/38806F25C915ED051285163036316EF25C3C8780D5.pdf?link=http://www.ingentaconnect.com/error/delivery&format=pdf

Search in DiVA

By author/editor
Bonn, JonasRedeby, JohanRoeraade, Johan
By organisation
Analytical Chemistry
In the same journal
Journal of Chromatographic Science
Chemical Sciences

Search outside of DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric score

urn-nbn
Total: 52 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf