I got 88.0 % assay for a drug in HPLC analysis for same
injection i got 40.0% related substances is it possible?
what is the relation between results of assay and purity?
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Answer Posted / falguni patel
Ya that may be possible. In purity, we compare area of our
main component with respect to impurities, while in assay
we compare it with standard. So in purity % of area will
devide with impurities.
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