Can you please give a suitable definition and an example for understanding the words purity and potency.6 6135
What is column in chromatography?778
why we get negative values in uv when i placed sample which has some concetration but not in standard1 3141
how the compound separate in coulunm,explain1000
why we use Dichlorobenzene.nitrobezine.t-butyldi sulhate.for calibration of gc Head space916
Why use the Omeprazole as a reference standard to estimate the assay of esomeprazole by HPLC method1 2220
are there in uv lamb that is chractrestic for wavelenghth 205 nm ?????697
In UV calibration we use Holmium perchlorate solution made in 1.4M perchloric acid The question is that 1.4 M perchloric acid we make is it in water or glacial acetic acid?4 6121
why we use a particular hplc column for a particular compound give reasons?please
What is control room temperature and which guide line says?
why lactose has less charges when packed in steel containers when compared with packing of lactose in polyamide material?
process of Diclofenac sodium,IP.
what is the disso medium for tropsiun chloride
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 ?
Why to use propyl paraben in HPLC gradient calibration
Why do we use KMnO4 in the test of control of obsorbance ? and why do we take specific quantity i.e 57-63mg?
cefoperozone and sulbactam inj. hplc test method
What is aggregate and fragments in SEC?
what is the importance of peak purity in HPLC and how we can calculate through manul(not software)?
how will you do the prep for unstable componds?
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.
Basic principle of ESI?
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