how can I make the copper get white bye any salt or acit?
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why in hplc peaks are in positive side(it means upside) not in negative side?
differnc btw c18 and c-8 column
why we are using only lead standard solution for Heavy metals test? what is the purpose of this?
why we are using in ph calibrations ph4,7,9.2 buuffers only?
3 Answers Reddy Labs, Unichem,
Which products will produce when acetic anhydride reacts with Ter-butanol, Sec-butanol, Iso butanol, Dimethylamine etc.
why we are doing seal wash and needle wash?
[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?
in monograph 7 imp are there but in vendor showing 5 imp do not req to include 2 imp for that what will be justification?
How to calculate coreletion coefficient
why do we have to used saturated ammonia in TLC
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 ?
how calibrate the hplc detector
2 Answers Cipla, Shraddha Analytical Services,