How to establish pKa for a new API molecule ?
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HPLC(By using pH Buffer solutions),uv(By using pH Buffer
solutions),Solubility(By using pH Buffer solutions)
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k.f principle in finding out moisture content
Why Urasil and Caffeine use for HPLC wavelength accuracy calibration. which is most suitable, Why? other than these which can be used?
how can I make the copper get white bye any salt or acit?
how to qualify the impurity?
water is more polar than acetonitrile.but in reverse phase chromatography peaks elute earlier when we increse Acetonitrile.what is the reason.
In GC Why does retention time decrease when temperature increases? Also how does a change in temperature effect selectivity?
How will you convert a 6 Normal solution to 8 Normal solution?
What is Formula of Potency calculation on Dried basis, As is basis& Anhydrous basis.
what are peak purity,peak purity index,peak thresold
we can use expired sample for validation and analyst qualification?
Calculate the water content in Di Sodium Tartrate (DST) based on molecular weight?
one gram of which below elements has the most atoms in its? a) H b) D C)T D) He