in test of cynoguandine in Metformin tablets , we have a problem in peak of metformin (big tailing ) in sample ,The problem has been addressed by making a sample dilution and changing of injection volume from 20 to 10 . Do we need a validation for the method?
yes, Definitely required.
I have available method for same as per you telling.
if you want then tell me.
Regards
suhel patel
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yes we need this urgently