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Evaluation of ionic liquid stationary phases for one dimensional gas chromatography-mass spectrometry and comprehensive two dimensional gas chromatographic analyses of fatty acids in marine biota
Gu, Q.; David, F.; Lynen, F.; Vanormelingen, P.; Vyverman, W.; Rumpel, K.; Xu, G.; Sandra, P. (2011). Evaluation of ionic liquid stationary phases for one dimensional gas chromatography-mass spectrometry and comprehensive two dimensional gas chromatographic analyses of fatty acids in marine biota. J. Chromatogr. 1218(20): 3056-3063. https://dx.doi.org/10.1016/j.chroma.2011.03.011
In: Journal of Chromatography A. Elsevier: Amsterdam. ISSN 0021-9673; e-ISSN 1873-3778
Peer reviewed article  
Available in  Authors 
Keyword
    Marine/Coastal
Author keywords
    Gas chromatography-mass spectrometry; Ionic liquid stationary phases;Fatty acid methyl esters; Algae; Comprehensive two-dimensional gaschromatography; Flow modulation
Authors  Top 
  • Gu, Q.
  • David, F.
  • Lynen, F.
  • Vanormelingen, P.
  • Vyverman, W.
  • Rumpel, K.
  • Xu, G.
  • Sandra, P.
Abstract
    Ionic liquid stationary phases were tested for one dimensional gas chromatography-mass spectrometry (GC-MS) and comprehensive two dimensional gas chromatography (GC x GC) of fatty acid methyl esters from algae. In comparison with polyethylene glycol and cyanopropyl substituted polar stationary phases, ionic liquid stationary phases SLB-IL 82 and SLB-IL 100 showed comparable resolution, but lower column bleeding with MS detection, resulting in better sensitivity. The selectivity and polarity of the ionic liquid phases are similar to a highly polar biscyanopropyl-silicone phase (e.g. HP-88). In GC x GC, using an apolar polydimethyl siloxane x polar ionic liquid column combination, an excellent group-type separation of fatty acids with different carbon numbers and number of unsaturations was obtained, providing information that is complementary to GC-MS identification.
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