The Method detection limits for, propanal,
butanal, hexanal and heptanal (MDL, S/N = 3) were between
0.05 and 0.08 mg L1 in soybean oil, between 0.02 and 0.04 mg L1
in sunflower oil and 0.08–0.15 in olive oil. The lower limit of quantification
(LLOQ) values were calculated as ten times the standard
deviation of ten replicate runs of soybean and sunflower and olive
oil samples spiked with low concentration of analytes. The LLOQ
values were in the range of 0.26–0.5 mg L1. The coefficient of
determinations (r2), MDLs, and LLOQs of analytes are presented
in Table 2.