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Many times I don't got a caffeine peak in calibration of hplc using guard column ❓
Why dissolution test is not performed in all of the products
Why a1% value is used for some product ? What is the criteria for selection a1% value ?
what is lod and loq ?,why use k2cr2o7 , kcl h2so4 in uv calibration ?,why use benzophenone & caffene acetone in hplc calibration ?,what is leading peak in hplc ?why we do the calibration of limit of stry light in hplc & uv ?
Which products will produce when acetic anhydride reacts with Ter-butanol, Sec-butanol, Iso butanol, Dimethylamine etc.
how require to interprit the method precision data of hptlc?
how the compound separate in coulunm,explain
some product having water content method with pyridine and ethylene glycol mixture instead of methanol? how they are selecting and methanol is not suitable solvent how ?
UV and PDA detector, which have less signal to noise ratio?
How we choose the mobile phase for method development.?
Describe your field experience sample type collected,sample techniques,field measurements taken and equipment used?
What is the difference between purge septum flow and column flow in gas chromatography?
in which situation require to use paddle and basket?
In Assy by potentio metry titration method how select MET U ,DET U, SET U,
mahagenco syllabus for the post of chemist
