What is difference between Potency & purity3 10360
state the principle of gas chromatography?5 8360
Why noise test is performed at 254 nm in calibration of HPLC system?4 12168
some compound havving uv region but not give much more response during hplc analysis2 4403
I have got selected for Aurobindo Pharma AR&D, HR person is asking me to sign in agreement. can I join?19 27766
Why sulfuric acid is used in sulphated ash / residue on ignition test.8 49573
During Validation study, Recovery is passing at all levels but Linearity is failing. Justify?1 1538
What is Stray light ? & what is the IMP of this2 7098
If we do accuracy at same concentration at which linearity planned,what is the need to do linearity separately?927
What is the Deference between Bulk density & Tap density ?2 19138
How will u perform degradation study in detectors other thann PDA in HPLC Methodology
what is the principle of UV Vis spectroscopy, AAS, ICP OES,ICPAES, ICP-MS and FTIR
WHAT IS THE PURPOSE WE USE HCL, CHOPPER, BURNER, MONOCHROMATOR in AAS? PLEASE EXPLAIN BRIEFLY
how to get accurate result for Residue on evaporation in purified water
For titration in anhydrous media with perchloric acide, if lack of titrator, Which indicator is been used for replacement. How calculate pH of test solution to choose suitable indicator?
How do we quantify crystaline and amarpous forms by using (NMR, XRD)spectroscopic techniques? Which any others instruments are useful for this quantification? explain
How would you decide dissolution medium for NCE compound of class I drug
what is difference between UV - VISIBLE MODEL NO like 1600,1601,1700 etc ? plz explain me
can we use the same detector in HPLC as well GC and what could be the differences we can find in the final chromato graph in any aspects?
Why do we use KMnO4 in the test of control of obsorbance ? and why do we take specific quantity i.e 57-63mg?
A ha tc is actual defination of retention time?
what is separation techniques.
How to start the dissolution development for unknown tab?
function of detecter in hplc ,gc and spectroscopy? function of carrier gas in gc?
Why to use propyl paraben in HPLC gradient calibration