Mineral Oil Analysis: A Slippery Problem
What are the analytical challenges – and dangers – posed by MOAH and MOSH – and how can we tackle them?
Maurus Biedermann |
In food analysis, people are increasingly talking about MOAH and MOSH – but what are they, and why are they in the spotlight?
The terms mineral oil saturated hydrocarbons (MOSH) and mineral oil aromatic hydrocarbons (MOAH) were first used in 2008, when our lab started to distinguish between these two fractions of mineral oil contamination by HPLC separation. In fact, we began studying them two decades before this; it was 1988 when we were using on-line LC-GC coupling to perform a different analysis entirely, but by coincidence, the mineral oil contamination showed up in the chromatograms.
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