Mineral Oil Hydrocarbons Testing (MOSH/MOAH) in Food
Mineral Oil Hydrocarbons (MOH) comprise a large group of mixtures of hydrocarbons containing thousands of chemical compounds of different structures and size. MOSH and MOAH, more specifically, are acronyms for a complex mixture of chemical compounds.
MOSH (mineral oil saturated hydrocarbons) include open chain and cyclic hydrocarbons. POSH (polyolefin oligomeric saturated hydrocarbons) are another group of substances concerned by the characterisation of MOSH. POSH are oligomers of polyolefins.
MOAH (mineral oil aromatic hydrocarbons) are highly alkylated mono- and/or poly-aromatic hydrocarbons.
There are several possible sources of MOH contamination into food. This can include from food packaging materials, food additives, processing aids, and environmental contaminants such as lubricants. The contamination can occur both from raw materials and at various stages of food production, including transportation and storage.
Neotron's proposal
At Neotron, mineral oil hydrocarbons are analysed applying HPLC-GC-FID methods based on the BfR method of 2009 and EN 16995. In the sample preparation various steps are carried out in order to minimize the influence of matrix interfereces.
In addition, to avoid false positives, Neotron has recently developed an application in two-dimensional GC separation coupled with TOF mass spectrometry (GCxGC-TOFMS) as confirmatory technique for MOSH and MOAH qualitative characterization to identify typical markers.
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