Determination of diacylglycerol isomers in vegetable oils by solid-phase extraction followed by gas chromatography on a polar phase

1996 ◽  
Vol 721 (2) ◽  
pp. 305-314 ◽  
Author(s):  
M.C. Pérez-Camino ◽  
W. Moreda ◽  
A. Cert
Keyword(s):  
Gas Chromatography ◽  
Solid Phase Extraction ◽  
Vegetable Oils ◽  
Solid Phase ◽  
Polar Phase ◽  
Phase Extraction

scholarly journals Separation and determination of tocopherols in vegetable oils by solid phase extraction on porous polymers SPE cartridges and capillary gas chromatography analysis

2010 ◽  
Vol 8 (5) ◽  
pp. 1110-1116 ◽  
Author(s):  
Mihail Beldean-Galea ◽  
Cristina Horga ◽  
Maria Coman
Keyword(s):  
Gas Chromatography ◽  
Solid Phase Extraction ◽  
Vegetable Oils ◽  
Solid Phase ◽  
Extraction Methods ◽  
Porous Polymers ◽  
Phase Extraction ◽  
Chromatography Analysis ◽  
Gas Chromatography Analysis

AbstractIn this study we present the solid phase extraction selectivity of tocopherols from vegetable oils using four porous polymers (Porapak P, Porapak Q, Porapak QS, Porapak N). The tocopherols elution from SPE cartridges was performed using several hexanes:ethyl acetate mixtures (100:0, 95:5, 90:10, 85:15, v/v). Tocopherols (α, γ and δ-tocopherol) were analyzed by gas chromatography without any derivation steep. The amount of NaOH used for triglyceride removal was optimized. Particularly liquid-liquid and solid phase extraction methods for the extraction of tocopherols from vegetable oils were compared. The results confirmed that porous polymers represent promising SPE alternatives for the extraction of tocopherols from oils.

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