A solvent passes through a chromatography column in 2.85 min, but the solute requires 9.43 min....
A solvent passes through a chromatography column in 2.85 min, but the solute requires 9.43 min.
What is the retention factor, k?k=
What fraction of the time does the solute spend in the mobile phase in the column?
tfraction in mobile phase=
The volume of the stationary phase is 0.115 times the volume of the mobile phase in the column (Vs=0.115Vm).
What is the partition coefficient, K, for this system?
K=
Homework Answers
Retention factor is the distance moved by solute decided by distance moved by solvent.
Solvent takes 2.85 min
Solute takes 9.43 min
Retention factor is 9.45-2.85÷2.85=2.31
Fraction time in mobile phase =9.43÷2.85=3.308
Partition coificiant is concentration of solute in stationary state÷ concentration of solute in mobile state.
Wich is equal to volume in mobile state ÷ volume in stationary state.=1÷0.115=8.695
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A solvent passes through a chromatography column in 2.85 min,
but the solute requires 9.43 min....
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