Which column is more polar, C8 or C18?
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In which situation we require to analytical method validation of excipient?
What is the difference between purge septum flow and column flow in gas chromatography?
1)What's the meaning of Absorption,give a example. 2)What's the meaning of Adsorption,give a example. 2)what is the difference between Absorption and Adsorption.
Ph meter can show more than 14 ph reading? Why ph range in between 1 to 14 only?
why octanol used to determine the partition coefficient ?
How can we confirm the HPLC column is end-capped or not? Is it possible to identify by physical appearance?
In rs method development when we are going area normalization method to dilute standard method?
Why sometime potassium ortho phosphate mix with acetone use for sample preparation for hplc
how the compound separate in coulunm,explain
How to set specification of assay, fisdolution and related substances?
What are the primary considerations in extractables and Leachables ?
if instrument calibration fails then what require to do?
what type of question will ask in the interview of lab chemist.
Is it nessesary all multimedia dissolution require descriminatory?
What is mean by PDR?