Validation And Qaqc Challenges

The validation requirements for contaminants and residue analysis in the food chain are laid down in different international regulations. Some contaminant plus sample matrix groups are using the concept of normalized and harmonized reference methods, in other situations the requirements are limited to method validation and data interpretation issues. In any case, the number of available certified reference materials and interlaboratory studies is far too low, mainly due to financial limitations and other priorities. Two issues are particularly challenging: (i) the validation of biochemical or biological rapid screening methods and (ii) the validation of generic comprehensive instrumental methods.

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