P2701-MRT - Uncertainty of sampling, homogenisation & analysis
EPTIS factsheet 1648730 | Last revision 2026-11-11 | URL: https://www.eptis.bam.de/pts1648730 https://www.eptis.bam.de/pts1648730
| PT provider | ||||||||||||||||
| PT provider | PROOF-ACS GmbH PROOF-ACS GmbH | |||||||||||||||
| Based in | Germany | |||||||||||||||
| Language(s) | English | |||||||||||||||
| Remarks | The aim of the method ring test is - a real-world assessment of the uncertainty of sampling from the fruit crate to the analytical sample in accordance with the Eurachem guidelines, - the evaluation of the performance of the labs with respect to the homogenisation of the samples, and - the evaluation of the analytical performance of the labs with respect to the quantification incurred residues of typical pesticides in grapes. Whole fresh grapes with incurred residues as well as a homogenate, prepared of the same grapes, are provided. PROOF-ACS, as the organiser, carries out a standardised practical sampling of the laboratory samples from the fruit crates. The laboratory samples are provided to the participants, two samples for each lab. In addition, a homogenate, prepared of a sample of all fruit crates is provided to derive the analytical uncertainty for the respective pesticides and the participating laboratories. The participants are requested to - homogenise the samples in accordance with a guideline provided by PROOF-ACS, and to provide a photo documentation of the process of the homogenisation. - analyse all 4 sub-samples, 2 for each non-homogenised material for pesticide residues (multi-residue methods). - analyse the homogenate as provided by PROOF for pesticide residues (multi-residue methods). | |||||||||||||||
| Keywords | ||||||||||||||||
| Product groups |
Food and drink
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| Testing fields |
Analytical chemistry
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| Technical details | ||||||||||||||||
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| Aims of the PT scheme | ||||||||||||||||
| Target group of participants | ||||||||||||||||
| Linked to specific legislation / standards | ||||||||||||||||
| Additional, subsidiary aims | ||||||||||||||||
| Number of participants | 10 | |||||||||||||||
| Accredited or otherwise reviewed by a 3rd party |
Accredited by DAkkS on the basis of 17043 |
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| Operation is commissioned / requested by | ||||||||||||||||
| Fees and frequency | ||||||||||||||||
| Participation fee | Contact us for further information | |||||||||||||||
| Regularly operated | No (last time in 2027) | |||||||||||||||
| When will be the next round | ||||||||||||||||
| Contact details of the PT provider | ||||||||||||||||
| Provider | Contact person | |||||||||||||||
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PROOF-ACS GmbH
Gottlieb-Daimler-Str. 1 28237 Bremen Germany Phone: +49 (0)421 388 928 50 Fax: Web: http://www.proof-acs.de http://www.proof-acs.de |
Dr. Birgit Schindler
Phone: +49 (0)421 388 928 50 Fax: Email: proof@proof-acs.de proof@proof-acs.de |
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If you find any mistakes please contact the responsible EPTIS coordinator in Germany,
Mr Johannes van de Kreeke.
Mr Johannes van de Kreeke.