Determination of 2-Propenal Using Headspace Solid-Phase Microextraction Coupled to Gas Chromatography–Time-of-Flight Mass Spectrometry as a Marker for Authentication of Unrefined Sesame Oil

Table 6

Linear regression equation, correlation coefficient, linear range, limits of detection, and quantification of the developed methods for 2-propenal extraction.

Extraction conditions	Linear regression equation		Linear range (µg mL^−1)	LOD (µg mL^−1)	LOQ (µg mL^−1)
Corn oil; (: 55°C, : 15 min, : 15 min)		0.9999	0.02–0.76	0.010	0.031
Soybean oil; (: 55°C, : 25 min, : 15 min)		0.9999	0.02–0.76	0.008	0.023

-Propenal standard was extracted using a CAR/PDMS fiber under optimal conditions for corn or soybean oil samples; LOD: limits of detection; LOQ: limits of quantification.