Why used 0.02% v/v solution of toluene in hexane for
calibration of UV.
Answer Posted / m.kallappa
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in DMF having extra impurities and in api COA also having extra imp than USP or BP product then how require to proceed?
1)What's the meaning of Absorption,give a example. 2)What's the meaning of Adsorption,give a example. 2)what is the difference between Absorption and Adsorption.
how will you do the prep for unstable componds?
[3/28, 20:52] Manoj P Venkatpurwar: how many impurities require to inject in assay specificity that how we can find out? and in Rs also how?
on the basis of bcs class how to proceed the solubility?
what is the different in Total ash, sulphated ash, acid insoluble ash, alcoholic or non alcoholic ash?
How to choose the which salt is suitable for mobilephase
for inorganic molecules require to do RS, Assay and disso?
using gradient pressure in gas chromatography are not ?using gradient pressure why
WHY given much noise PDA dector then VWD Dector
In the isomers,enantiomers give the only physical properties present such that no chemical properties present.
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
Why we use potassium dichromate in uv calibration Exact reason behind it??
could negative ions be produced by bombardment process in mass spectrometry?
Why are use silicon oil mr?