what is concentration of oxygen in U.H.P. grade N2 cylinder
how require to interprit the method precision data of hptlc?
What is diffrence between extractable volume and deliverable volume? Answer pls
some compound havving uv region but not give much more response during hplc analysis
What is similarity factor?
in OSD forms require to use gas chromatography?
what are the normalisation, internal standard and external standerd methods in HPLC.
why we calibrate ph meter and balance daily.....but hplc and uv requires quaterly?
how to qualify the impurity?
differnc btw c18 and c-8 column
what is the different in Total ash, sulphated ash, acid insoluble ash, alcoholic or non alcoholic ash?
in gas chromatography what is the difference between gas flow rate and average linear velocity ?
why should we do limit of stray light in UV calibration and why should use potassium chloride