Mineral oil contaminations in dry food samples
Mineral oils are complex mixtures of hydrocarbons. Mineral oil contamination can be classified as mineral oil saturated hydrocarbons (MOSH), which are open chain paraffins, isoparaffins and cyclic naphthenes, and mineral oil aromatic hydrocarbons (MOAH), comprising mainly alkylated 1-3 ring compounds.
Different dry food samples were extracted by pressurized solvent extraction (PSE) using the SpeedExtractor E-916. The MOSH and MOAH fractions were analysed by LC-GC. A clean-up step after extraction was not necessary.