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Is there any difference in principal of reverse phase and normal phase chromatography? and why? Please update. Thank and regard
3 11348in hplc calibration injector linearity pass,it means inj and det is good. why to perform detector linearity is it required, if it is required,what is difference between injector and detector linearity in hplc calibration
4 15912Post New Analytical Chemistry Questions
on saturation solubility study data how we can find out the bcs class of drug?
if your impurity coeluting with each other in that situation how require to set specification? is it acceptable?
If change in specification which parameter require to do for validation? if change in chromtographic condition then which parameter? if api change then which parameter? if change composition then which parameter? if old method not work out then whicj parameter? if additional one impurity added then which parameter of validation require to do on above each conditions? elaborate separately
How to calibration of the uv spectroscopy and its test?
If vendor having more imp than monograph then how to proceed? and how to set spec?
Many times I don't got a caffeine peak in calibration of hplc using guard column ❓
what is the different in Total ash, sulphated ash, acid insoluble ash, alcoholic or non alcoholic ash?
we can use expired sample for validation and analyst qualification?
In which situation we require to analytical method validation of excipient?
in hplc chromatogram started from left to right and in uv spectrum started from left to right
about method developement in hplc
how to qualify the impurity?
how require to set assay concentration for standard and sample?
In Assy by potentio metry titration method how select MET U ,DET U, SET U,
Why only Copper standard is used to calibrate Atomic Absorption spectrophotometer?
