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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
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| Trefwoord |
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| Author keywords |
Gas chromatography-mass spectrometry; Ionic liquid stationary phases;Fatty acid methyl esters; Algae; Comprehensive two-dimensional gaschromatography; Flow modulation |
| Auteurs | | Top |
- Gu, Q.
- David, F.
- Lynen, F.
- Vanormelingen, P.
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- Vyverman, W.
- Rumpel, K.
- Xu, G.
- Sandra, P.
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| 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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