How to spike impurity for preparation of precision samples during RS validation? 

Grt job done in simple manner

You are my pharma Guru

Good explanation👍🏼

Good and great explination

Suprbb explanation sir

Thanks sir

Nice explanation ..

Very useful sir 👍

Very useful information

thanks for videos

Percentage to ppm, how Is it, 0.5*10000=5000

Impurity salt correction not explained

What about impurity potency

You can help us, how we calculated the spike sample after inject

Sir if impurity presents in samples at Loq level can't spike or not?

as usual,1st view

Sir i have a concenrn, i don't understand that ..( 0.2% equals to 2ppm).how is possible, because 1% equals to 10000ppm.....so please clearify.

Sir hoe 0.5 percent equivalent to 5ppm? Not understand. 0.5 percent equvalrnt to 500 ppm May i right or wrong cant understand

HPLC And GC Column Chemistry Sir Please Upload

When v calculate accuracy, accuracy is failed, spiking should be done at 5 ppm not 3 ppm

Thanks sir