what is the defferance between the potency and working standard1 3211
what is the principle involved in determination of moisture content?3 7212
what is difference between assay&purity&potency?5 24237
From peak purity spectrum, where or at which point peak purity angle & purity threshold is checked?1 1609
what is concentration of oxygen in U.H.P. grade N2 cylinder1 2960
water is more polar than acetonitrile.but in reverse phase chromatography peaks elute earlier when we increse Acetonitrile.what is the reason.10 35236
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 7148
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 7192
why use benzophenone & caffene acetone in hplc calibration1 12313
Why a1% value is used for some product ? What is the criteria for selection a1% value ?
explain 5 components of gas chromatography ?
What is the exact reason to use THF and IPA in buffers of Reverse phase HPLC as a solvent?
In dissolution of tablets/capsules elaborate the Dissolution limit 20.0% to 60% Q in 30 minutes.
Why we used in n-butyl acetate water content terminology while in ethyl acetate we used moisture content terminology?
all types of questions asked at the cipla interview
for heavy metal test lead used in which form pure form or any other form for preparation of lead standard sol
how to select short coloum and long coloumn for new molecule
why we are using benzene, anyline in acetic anhdride assay titration method?
how much mass should be there in volumetric flask while in preparation of sample for assay?
Why sometime potassium ortho phosphate mix with acetone use for sample preparation for hplc
How will u perform degradation study in detectors other thann PDA in HPLC Methodology
What are modes of quantification in related substances
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.
What is the principle of HPLC, GC, LCMS, GCMS,LC QQQ, GC QQQ, LC Q TOF and GC Q TOF. What are the applications and Specificity?