MOSH/MOAH in processed food (LC-GC-FID and GCxGC-FID)

Method ring test P2706-MRT is designed for the quantification of MOSH and MOAH by means of LC-GC-FID or similar methods. The quantification of total MOAH by GCxGC-FID is offered as an additional module.

LOQs of 1 mg/kg related to total MOSH resp. total MOAH are required for this method ring test in accordance with the expected maximum levels of 0.5 resp. 1 mg/kg for MOAH in 2030.

Two test materials are offered:

a sample of instant noodle soup with a fat content of < 4 % (and the corresponding unspiked material), and
a sample of canned fish with a fat content of 4 to 50 % (and the corresponding unspiked material).

Spiked levels are within the typical ranges of contaminations of the respective matrix. The results related to the spiked materials are evaluated with respect to the comparability criterion (z-score) as well as with respect to the trueness criterion (70 to 120 % of the spiked level, as far as scientifically reasonable).

P2706-MRT is offered as a method ring test, which means,

the evaluation is not limited to the pure statistical evaluation.
the participants are asked to provide the chromatograms and plots related to the test materials.
the participants are asked to answer a questionnaire related to relevant aspects of the sample preparation and analysis.

The chromatograms as well as the answers related to the questionnaire are summarised in separate parts of the final report. For reasons of fairness, only those participants, which provide details and chromatograms will receive these parts of the report. The data will help to identify shortcomings, built the basis for further discussion and thus help to enhance the quality of the applied method.

Parameters

Test material - canned fish

MOSH ≥ C10 to ≤ C16, MOSH > C16 to ≤ C20, MOSH > C20 to ≤ C25, MOSH > C25 to ≤ C35, MOSH > C35 to ≤ C40, MOSH > C40 to ≤ C50, Total MOSH (≥ C10 to ≤ C50), MOAH ≥ C10 to ≤ C16, MOAH > C16 to ≤ C25, MOAH > C25 to ≤ C35, MOAH > C35 to ≤ C50, Total MOAH (≥ C10 to ≤ C50)

Blank material - canned fish

Test material - instant noodle soup

Blank material - instant noodle soup

Additional module (GCxGC-FID)

Canned fish TM - Total MOAH (≥ C10 to ≤ C50), Canned fish BM - Total MOAH (≥ C10 to ≤ C50), Instant noodles TM - Total MOAH (≥ C10 to ≤ C50), Instant noodles BM - Total MOAH (≥ C10 to ≤ C50)

Expected time schedule

Please register before:
01 July 2027

Dispatch of samples:
13 September 2027

Deadline for reporting results:
05 October 2027

Costs of P2706-MRT

Ring test and material	Amount	Price per unit
MOSH/MOAH in processed food (LC-GC-FID and GCxGC-FID)	–	1200 €
Test material - canned fish Canned fish with MOSH and MOAH	50 g	included
Blank material - canned fish Canned fish, unspiked.	50 g	included
Test material - instant noodle soup Instant noodle soup with MOSH and MOAH.	50 g	included
Blank material - instant noodle soup Instant noodle soup, unspiked.	50 g	included
Additional module (GCxGC-FID) Quantification by GCxGC-FID (total MOAH).		380 €

Note: PROOF-ACS reserves the right to cancel tests in case of less than ten participants.