what is the defferance between the potency and working standard1 2785
what is the principle involved in determination of moisture content?3 6795
what is difference between assay&purity&potency?5 22343
why we do the calibration of limit of stry light in hplc & uv1268
From peak purity spectrum, where or at which point peak purity angle & purity threshold is checked?1 1302
what is concentration of oxygen in U.H.P. grade N2 cylinder1 2782
water is more polar than acetonitrile.but in reverse phase chromatography peaks elute earlier when we increse Acetonitrile.what is the reason.10 33098
I got 88.0 % assay for a drug in HPLC analysis for same injection i got 40.0% related substances is it possible? what is the relation between results of assay and purity?5 6689
hi i am m.sc organic chem and complete analytical lab tech dipolma now job in qc many time ask question you in m.sc organic why job in qc please help me i can not give proper ans please tell me3 6816
why use benzophenone & caffene acetone in hplc calibration1 11506
how to calibrate hplc & gc
in dissolution in one tablets two molecule one is losartan & second is HCTZ losartam is complies in s1 stage & hctz is complies in s2 stage then how to report result losartan s1 stage result or losartan s2 stage result
Tell me something about Vitamin A test method by HPLC
How can we confirm the HPLC column is end-capped or not? Is it possible to identify by physical appearance?
wat is the role of michelson interferometer in FTIR and He-Ne lase.detailed answer required in simple language
when we talk about change in entropy we consider total entropy means of surround +entropy of system but when we talk about change in Gibss free energy we consider entropy of system.explain with reason.
effect of Ph during analytical run ?
why should we perform dissolution PVT calibration only by UV spectrometer, not by HPLC ?
Why Ethanol is Used for Standardization of GC Head space?
all types of questions asked at the cipla interview
What should be the level/ Percentage of Arsenic in Arsenic free zinc.
How do we quantify crystaline and amarpous forms by using (NMR, XRD)spectroscopic techniques? Which any others instruments are useful for this quantification? explain
Principle of single pan analytical balance
some product having water content method with pyridine and ethylene glycol mixture instead of methanol? how they are selecting and methanol is not suitable solvent how ?
What are usp limits for total impurities,unknown impurity