The authors of a recent study used LC/Q-ToF MS to profile the lipid composition (di- and triacylglycerols, DAGs and TAGs) of different edible oils.
From these profiles they have proposed a panel of 27 lipids that can be measured as a routine authenticity verification of camelina oil, hemp oil and flax (linseed) oil. They have also identified 6 lipids that can be used as markers for adulteration of these oils with either sunflower, rapeseed or soybean oil.
The full article, with details of the markers, is available here (purchase required)
Photo by Dan Cristian Pădureț on Unsplash
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