Why red HgI2 added during starch preparation?
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What is the difference between purge septum flow and column flow in gas chromatography?
what is the extinction coefficient for Indomethacin or at 319nm wave length.
How to establish relative response factor for hplc. Why it is required?
why we use Dichlorobenzene.nitrobezine.t-butyldi sulhate.for calibration of gc Head space
we are performed SOR for a particular product the limit is -6 to -10.We face particular bathes it is not meeting the specification.we performed diffrent instrument diffrent analyst we are getting diffrent diffrent results.solvent is dimethyl sulfoxide what could be the reasion
in api coa contains only process impurities and in product coa contains degradation impurities?
what is procedure of actual procedure for registration of drug?
why require the ph, buffer during hplc mobile phase?
WHICH STANDARD WE USE IN SILICA ANALYSIS IN SILICA-GEL METHOD FOR SOLID SAMPLE
please explian me about area normalisation method,diluted standard method,impurity vs impurity and which one has to be selected in method development
Why we check moisture,ash & AIA in product
How to set analyticl specification for combination products?
WHY pKa value is more important than pH value of the mobile phase in HPLC?
In GC calibration,what is the procedure to calibrate the TCD (thermal counductivity detector)suggest ?
if your impurity coeluting with each other in that situation how require to set specification? is it acceptable?