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?
what is the use of performing tapped density in pharmaceutical industry
What is the diff b/n OVI and Residual solvents
Which Zone of our country like conducting of Stability studies(Accelerated & Long term stability studies)as per ICH guidelines.
How decided 10 ppm standard solution in Swab, rinse method.?
Why pyrene is also use for calibration if detector
function of detecter in hplc ,gc and spectroscopy? function of carrier gas in gc?
How to calculate lamp energy in hplc?
why wetlab is called as wetlab
How to check hplc detecter sensitivity?
if partition coefficient value was positive means, what it indicates ?
how to prepare 5normality of hcl
If change in specification which parameter require to do for validation? if change in chromtographic condition then which parameter? if api change then which parameter? if change composition then which parameter? if old method not work out then whicj parameter? if additional one impurity added then which parameter of validation require to do on above each conditions? elaborate separately