This test method describes a method for the determination of hydrocarbons (n-alkanes) in vegetable oils and fats using gas chromatography-mass 297 spectrometric (GCMS) detection. Vegetable oils may be contaminated by mineral fuel oils (dieseloil) due to the use of transport/storage facilities which are not strictly for transport/storage of food-grade, or due to other reason. The mineral fuel oil consists mainly of hydrocarbons (n-alkanes) with a chain length in between C10 to C24 and their quantification limit is 1.0 mg kg-1.

Main Research: Norizah Halim