Can anyone advise if it will be acceptable with the US and EU authorities if we do HPLC/GC method validation using multiple equipments for a single method.
Example, is it acceptable to do specificity, precision and linearity in one instrument and the other parameters like solution stability, accuracy, LOD, LOQ and robustness in a different but equivalent instrument for the same assay method validation.
What are the other factors to consider inaddition to similar instrument (model, make etc). This is regarding assay or related substances or residual solvents determination for API
Is there any query email for asking the US FDA regarding this.