In-pipette solid-phase extraction prior to flow-modulation comprehensive two-dimensional gas chromatography with dual detection for the determination of minor components in vegetable oils

Talanta ◽  
2017 ◽  
Vol 165 ◽  
pp. 598-603 ◽  
Author(s):  
Laura Barp ◽  
Flavio A. Franchina ◽  
Giorgia Purcaro ◽  
Peter Q. Tranchida ◽  
Luigi Mondello
Keyword(s):  
Gas Chromatography ◽  
Solid Phase Extraction ◽  
Vegetable Oils ◽  
Solid Phase ◽  
Phase Extraction ◽  
Two Dimensional ◽  
Minor Components ◽  
Flow Modulation ◽  
Dual Detection

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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