Which is the best mobile phase to separate organic acids using C8 column. And how should the samples be prepared for hplc?1 2379
Why we used in n-butyl acetate water content terminology while in ethyl acetate we used moisture content terminology?
How to calculation of residual solvent methanol (3000 ppm) standard solution, and how many quantity used of test sample1261
What is third generation HPLC Columns?784
what is third integration788
Why sodium hydroxide used for maintain pH of phosphate buffer1022
what is the procedure for cleaning of lenses of hatr accesory of ftir instrument?
what is the purge flow & how to calculate
why does used dry caffien in HPLC calibration?
what is difference in ods I ods II is this is realy from sorbent / packing characteristics or from other means
what is procedure of actual procedure for registration of drug?
WHY pKa value is more important than pH value of the mobile phase in HPLC?
in gas chromatography what is the difference between gas flow rate and average linear velocity ?
how you determine moist.of NaOH sol or NaOH flacks
Basic principle of ESI?
we are performed SOR for a particular product the limit is -6 to -10.We face particular bathes it is not meeting the specification.we performed diffrent instrument diffrent analyst we are getting diffrent diffrent results.solvent is dimethyl sulfoxide what could be the reasion
why we use a particular hplc column for a particular compound give reasons?please
are there in uv lamb that is chractrestic for wavelenghth 205 nm ?????
If we do accuracy at same concentration at which linearity planned,what is the need to do linearity separately?
when we talk about change in entropy we consider total entropy means of surround +entropy of system but when we talk about change in Gibss free energy we consider entropy of system.explain with reason.
Why we check moisture,ash & AIA in product