what is the defferance between the potency and working standard
Arbro Pharmaceuticals, Caplin Point, ECOlogics, Matrix, Orchid, Venus Remedies,
1 6148From peak purity spectrum, where or at which point peak purity angle & purity threshold is checked?
1 4626water is more polar than acetonitrile.but in reverse phase chromatography peaks elute earlier when we increse Acetonitrile.what is the reason.
10 53061I 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 12102hi 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 me
3 11244Post New Analytical Chemistry Questions
Why sodium hydroxide used for maintain pH of phosphate buffer
Hi sir if any product monograph not given known impurities (may be 5 impurities) specifications then how we require to proceed for inhouse formulation?
why we should take dst factor for below 1%moisture samples
how to select short coloum and long coloumn for new molecule
What are usp limits for theoritical plats,resoution,tailing factor,peak to valley ratio
why should we perform dissolution PVT calibration only by UV spectrometer, not by HPLC ?
in OSD forms require to use gas chromatography?
analytical method validation require to with respect to release specification or shelf life specification?
how decide the clining method and cleaning method validation require for this perticular products?
Why six unit used for precision?
why lactose has less charges when packed in steel containers when compared with packing of lactose in polyamide material?
how to get accurate result for Residue on evaporation in purified water
In BP2013, Loperamid HCl monograph. Assay by titration with 0.1N sodium hydroxide using hydrocloric acid 0.01N and reading the volume added between the 2 points of inflexion. I have a question that if the diluent solvent is ethanol is certainly consumed a amount of volume of titrant, so this volume must be eliminated on the result calculation or not apart from first point which is subtracted above.
mahagenco syllabus for the post of chemist
how will you do the prep for unstable componds?