Determination of MOSH and MOAH in edible oil
Proficiency Test Report JRC FCM-22/01
The European Union Reference Laboratory for Food Contact Materials (EURL-FCM) has organised a proficiency test (FCM-22/01) for the determination of mineral oil saturated hydrocarbons and mineral oil aromatic hydrocarbons (MOSH and MOAH) in edible oil to support the Commission Recommendation (EU) 84/2017. Upon request from DG SANTE, this proficiency test was open to all interested stakeholders from the industry, universities and commercial laboratories, in addition to the National Reference Laboratories (NRLs) and Official Control Laboratories (OCLs).
Test item A and test item B consisted of two edible oils spiked with MOSH/MOAH, while test item C consisted of a spiked hexane solution. The homogeneity and stability of the three test items were evaluated by the EURL and the assigned values were derived from the results from the measurements performed by four expert laboratories.
While 49 laboratories registered to this exercise, only 37 laboratories reported results, and 33 filled in the questionnaire. All results were rated using z, z’ and/or zeta (ζ) scores in accordance with ISO 13528:2015. Relative standard deviations for proficiency assessment (σpt,rel) ranging from 15 % to 30 % of the respective assigned values were set for total MOSH or MOAH mass fractions, based on the perception of experts.
Most of the participating laboratories performed satisfactorily (according to the z or z’ score) for the determination of the total MOSH/MOAH fractions in edible oil and hexane.
BRATINOVA Stefanka;
ROBOUCH Piotr;
CORDEIRO RAPOSO Fernando;
BELDI Giorgia;
SENALDI Chiara;
KARASEK Lubomir;
HOEKSTRA Eddo;
2023-04-12
Publications Office of the European Union
JRC133284
978-92-68-02137-8 (online),
1831-9424 (online),
EUR 31478 EN,
OP KJ-NA-31-478-EN-N (online),
https://publications.jrc.ec.europa.eu/repository/handle/JRC133284,
10.2760/208184 (online),
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