From where require to take the RLD sample?
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what is assay in hplc
what is reverse phase chromarography&normal phase chromatography
what is the difference between EP and BP
2 Answers Novartis, Vimta Labs,
why ph electrode is storing in KCL solution?Why the pH max is 14.0?
How long we can use hygroscopic reference standard in terms of water absorb.I mean in line with respective monograph's specification or more than that?
importance of internal standard and in what conditions it is used?
What is the reason of RT change in new column v/s old column in HPLC
WHY pKa value is more important than pH value of the mobile phase in HPLC?
What is the formula to determine the concentration of M of a solution given the % transmittance? Use %T = 43.7 as an example.
why we need to do karl ficher fector ?
what is the difference between gc& hplc. why we r not calculating purity by gc for final products
Why we use 100 RPM in friability test