perchloric acid&glacal acetic acid both are acids but reaction is complete in volumetric titrations.how?1 7014
acetic acid is weak acid & perchloric acid is strong acid.but how perchloric acid is soluble in acetic acid3 7083
Column selection in HPLC method development?1 8384
How to prepare ppm solution of Nacl form its salt?5 46917
what is mean by assay?6 13982
why we are doing seal wash and needle wash?2 9387
which functional group we can detect in IR?2 7547
what is mean by UOD?2 6258
what is mean by content uniformity?5 5681
today i am doing calibration of HPLC. when i inject the blank it was going on -ve.(bleow then zero) why?3 6631
what are the sources in ELSD,PDA, RI and UV Detectors?1 5559
in karl fischer reagent which solvent is used for dissolving iodine sulphur dioxide and imidazole4 6686
is it necessary to do HPLC calibration at wavelength 315nm if we are doing analysis at this wavelangth
what is turbidimetric titration?Give 2 examples.
Principle of single pan analytical balance
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 ?
what type of question will ask in the interview of lab chemist.
Did anybody have method for acetyl cysteine effervescnce tablet
what is the difference between potentiometric titration and karl fischer titration?
How do we quantify crystaline and amarpous forms by using (NMR, XRD)spectroscopic techniques? Which any others instruments are useful for this quantification? explain
Which products will produce when acetic anhydride reacts with Ter-butanol, Sec-butanol, Iso butanol, Dimethylamine etc.
what is the principle of UV Vis spectroscopy, AAS, ICP OES,ICPAES, ICP-MS and FTIR
what is the importence and role of LCMS and LCMS/MS and their applications? which type of compounds are analysis by lcms?
What are the primary considerations in extractables and Leachables ?
what is difference between zero air gas and o2 gas
mode of absorption in alimentary canal?
why 6 tablets use for dissolution