please explian me about area normalisation method,diluted standard method,impurity vs impurity and which one has to be selected in method development
1064How they found 1mL of K.F reagent is equivalent to 5mg of water and if we change the composition of K.F reagent, is it can neutralize more amount of water?
1248Why acetonitrile and water are used as extraction solvent when analysis melamine? I thought they are miscible and won't be able to separate...
1178In HPLC calibration, caffeine is used as primary standard for wave length calibration due to caffeine is having dual maxima at 273 & 205 nm and one minima at 245 nm. Any body can give reference of these details from any pharmacopeia (with chapter no.) or any other authentic guideline?
1415Post New Analytical Chemistry Questions
How can we confirm the HPLC column is end-capped or not? Is it possible to identify by physical appearance?
what is difference between UV - VISIBLE MODEL NO like 1600,1601,1700 etc ? plz explain me
How to set specification of assay, fisdolution and related substances?
in OSD forms require to use gas chromatography?
How to calculation of residual solvent methanol (3000 ppm) standard solution, and how many quantity used of test sample
if rsd failed then what require to do?
What are the primary considerations in extractables and Leachables ?
what is mean by nitrosamine impurities?
How require to perform linearity as per ANVISA? What are the acceptance criteria?
WHAT IS THE PARAMETER FOR THE SELECTION OF MOBILE PHASE IN HPLC?
please explian me about area normalisation method,diluted standard method,impurity vs impurity and which one has to be selected in method development
what is the procedure for cleaning of lenses of hatr accesory of ftir instrument?
how you confirm the assay method?
if tech transfer fails whay require to do?