why the same column give different retention time in hplc?

Answer Posted / nabil

there are many resons for different RT
1-The pressure used(because that affects the flow rate of
the solvent)
2- The nature of the stationary phase(not only what
material is made of, but also particle size.
3-the exact compositionsof the solvent.
4-the temp of the column.

Is This Answer Correct ?    23 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

if peak get problamatic then what require to do?

309


what is %labelled amount in content uniformity of dosage unit and its calculation?

4603


how can I make the copper get white bye any salt or acit?

1654


What is the purpose of octyl silane columns?

3770


What is the acceptance criteria for moisture balance when calibrated with sodium sulfate

1532






What should be the level/ Percentage of Arsenic in Arsenic free zinc.

1746


how to set sample and standard concentration in RS method?

350


What is column in chromatography?

1749


what is mean by 40 in the dissolution basket mesh size?

272


Why a1% value is used for some product ? What is the criteria for selection a1% value ?

1852


what is the principle of UV Vis spectroscopy, AAS, ICP OES,ICPAES, ICP-MS and FTIR

8400


How to do regeneration of Metacarb Pb plus column?

2065


How can we confirm the HPLC column is end-capped or not? Is it possible to identify by physical appearance?

2703


please explain about aluminium hydroxide assay

695


Why use only methanol,used determinationof moisture content not use other solvents

860