water is more polar than acetonitrile.but in reverse phase chromatography peaks elute earlier when we increse Acetonitrile.what is the reason.
Answer Posted / prasad
based on the solubility of the drug.Most of the drugs are insoluble in water
| Is This Answer Correct ? | 9 Yes | 10 No |
Post New Answer View All Answers
what is diffrence between specificity and selecivity?
which situation gc hs and gc als require to use?
In the HPLC Calibration done wavelength accuracy done between 200nm-280nm .but not done remaining 300-400nm not done ?
identification is for unknown? qualification for known? reporting for LOQ?
While performing TOC sst analysis Zero shift disabled & sample analysis zero shift enabled why?
in api coa contains only process impurities and in product coa contains degradation impurities?
in each media we require to use SLS? how to proceed?
if instrument calibration fails then what require to do?
What is the main difference between ODS1 and ODS2 Hplc column.
If suppose 10 methods of dissolution given in pharmacopoeial for single content product then which method out of 10? or all 10 require to follow?
what are the standard methods for HPLC?
What is the Formula for coreletion coefficient in plhplc calibration
How to calculation of residual solvent methanol (3000 ppm) standard solution, and how many quantity used of test sample
how a particular wavelength can be different for a particular compund while analysing by uv and by HPLC.
how decide the clining method and cleaning method validation require for this perticular products?