Determination of MOSH/MOAH in Shell SN500* mineral oil
JRC IF 2021-03 - The third interlaboratory comparison
In order to harmonise the determination of the MOAH in infant formulas, a third interlaboratory comparison (JRC IF 2021-03) was organised by the Joint Research Centre (JRC) of the European Commission. This ILC was designed to (i) evaluate the consistency of the reported results for solutions mineral oil in hexane at different concentration levels; and (ii) determine the MOSH/MOAH composition of a specific Shell SN500* mineral oil batch. This batch was used to spike various infant formula materials for the next method validation study, planned for the beginning of 2022.
The QC10 samples provided to the participants consisted of a hexane solution containing the Shell SN500* mineral oil. Participants were requested to perform four different dilutions and to quantify and report MOSH and MOAH concentrations. Thirty participants from eight European countries reported results. Six of them reported consistent results for the various dilutions, and provided proper recoveries. These results were selected for the characterisation of the MOSH and MOAH percent composition in QC10.
The following “reference” values were derived: MOSH % in SN500* = 60.1 ± 2.1 % (k=2) and MOAH % in SN500* = 34.5 ± 1.2 % (k=2). In addition, the major MOSH and MOAH fractions in SN500* were identified.
BRATINOVA Stefanka;
ROBOUCH Piotr;
OLIVEIRA GONCALVES Carlos;
KARASEK Lubomir;
BELDI Giorgia;
SENALDI Chiara;
VALZACCHI Sandro;
HOEKSTRA Eddo;
2022-02-09
Publications Office of the European Union
JRC127743
978-92-76-47525-5 (online),
1831-9424 (online),
EUR 30990 EN,
OP KJ-NA-30990-EN-N (online),
https://publications.jrc.ec.europa.eu/repository/handle/JRC127743,
10.2760/23771 (online),
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