AOAC SPSFAM Meeting Book 9-24

9/21/2017

Feedback of Chinese Stakeholders on the Vet Drugs Methods

Numbers of Compounds to regulate

>200 analytes for China market

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• Easy-to-get compounds should be of high priority • Need to consider the reality of how many analytes could be covered in a single method

Feedback of Chinese Stakeholders on the Vet Drugs Methods

How many methods for different analytes/matrices • Efficiency! The more analytes and matrices to cover, the more applicable the method is. Same pretreatment can be applied to similar matrices. Strategies include: • Validate matrices of the most consumption , eg. milk, egg, poultry, pork, fish, etc. • “Analyte + Matrix” , as some analytes might be used only in specific scenario (eg. metronidazole is only found in egg), with residue levels differ in different matrices • Separately evaluate analytes and matrices, and then combine the comparable matrices and pretreatments • Processed food product should also be validated

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