Can you please give a suitable definition and an example for understanding the words purity and potency.6 6460
What is column in chromatography?881
why we get negative values in uv when i placed sample which has some concetration but not in standard1 3330
how the compound separate in coulunm,explain1112
why we use Dichlorobenzene.nitrobezine.t-butyldi sulhate.for calibration of gc Head space1012
Why use the Omeprazole as a reference standard to estimate the assay of esomeprazole by HPLC method1 2442
are there in uv lamb that is chractrestic for wavelenghth 205 nm ?????785
In UV calibration we use Holmium perchlorate solution made in 1.4M perchloric acid The question is that 1.4 M perchloric acid we make is it in water or glacial acetic acid?4 6817
How we performed the force degradation for drug substance, is any specific guideline is available for each parameter(Acidic, basic, oxidation,heat)? what conditions you mentained for above parameters.
how you determine moist.of NaOH sol or NaOH flacks
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
Please tell me about the pH of Polycaboxylic ether is it in the 5-6 range ever or more than 6
What is the main difference between ODS1 and ODS2 Hplc column.
A ha tc is actual defination of retention time?
What is the diference between residual solvents and organic volatile matter
What is viod volume and peak purity in HPLC?
How would you decide dissolution medium for NCE compound of class I drug
calibrtion procedue of LC-MS
why we are using benzene, anyline in acetic anhdride assay titration method?
Ratio of Water and Acetonitrile(diluent) is not recommended to use in cleaning method validation,why?
how will you do the prep for unstable componds?
We use Potassium Dichromate solution for the calibration of UV-Visible Spectrophotometer in UV region. My question is to calibrate visible region which solution could be used in photometric accuracy