In this work an approach for ring trial validation of a DNA extraction method for further GMO analysis is described. Practical LOD was used as a key tool for assessing the suitability of the extraction method. In ring trial with soy lecithins, satisfactory results with practical LODs below 0.9 % were achieved in 4 out of 5 samples. In-house tests showed that this protocol -in a slightly extended version -can also be used to extract DNA from native rapeseed oils.
Zusammenfassung:In dem vorliegenden Beitrag wird ein Ringversuch zur Validierung einer DNA-Extraktionsmethode im Rahmen der Analyse von GMO beschrieben.
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