Comparability of mineral oil testing for dry food and cardboard samples - Perspectives from different PT rounds

Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
Milena FunkUlrich Leist

Abstract

Mineral oil hydrocarbons (MOH) can be found in detectable levels in a multitude of foodstuffs. Therefore, chemical analysis of food for MOH gains importance. Different proficiency testing (PT) rounds on mineral oil testing have been performed in different matrices: cereals and rice as well as cardboard samples were examined. The laboratories participating in the PT rounds had to follow specific requirements for examination. The sample materials used contained different concentrations of mineral oil saturated hydrocarbons (MOSH) and mineral oil aromatic hydrocarbons (MOAH). The PT results were statistically evaluated according to ISO 13528:2005 and additionally the HorRat(R) value was calculated to gain information on the comparability of the mineral oil testing. It could be shown that for the examined sample materials and under the chosen specifications for testing a comparable determination of the mineral oil content is possible within the required relative standard deviations. A useful analytical determination can be achieved with an acceptable relative standard deviation of <50% from a concentration of defined mineral oil fractions at ≥1 mg/kg in food. In the concentration range for MOH in food of between 1 mg/kg and 2 mg/kg...Continue Reading

References

Sep 5, 2009·Journal of Agricultural and Food Chemistry·Maurus BiedermannKoni Grob
May 2, 2014·Food and Chemical Toxicology : an International Journal Published for the British Industrial Biological Research Association·Laura BarpKoni Grob

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Citations

Oct 23, 2019·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·Sander KosterHerve Simian
Nov 22, 2019·Food and Chemical Toxicology : an International Journal Published for the British Industrial Biological Research Association·R BevanD Mitchell

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