What is shaking level in GC?
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What is difference between known and unknown impurities
how to prepare low ppm solution from high ppm solution ?
why we are using sodium,potassium phosphates for mobile phase preparation?
what does 'n' stands for in spectroscopy?give the formula.
what is difference between drug products and drug substance?
In case of dissolution test, if there is variation within 6 individual units however the batch is complying as per S1 criteria, is it necessary to do investigation for the same? What should be the criteria for such variation?
Why Holium cholorate used in UV Spectro photometer?
what is dead time in hplc?
How to prepare ppm solution of Nacl form its salt?
Why we use methanol as solvent in kf standardisation. Why not other solvent?
2 Answers Caplin Point, Epione Labs, Hetero,
what is a differance between assay by HPLC and assay by titration?
what is principle of XRD?