Effect of Column Length on Elution Pattern
Polystyrene standrads, n-propylbenzene and benzene were analyzed using GPC
KF-801 (a column for GPC separation).
Increasing the number of columns connected is an effective way of improving the resolution.
In this case, the use of four columns improves the separation of polystyrene oligomer significantly.
Sample :
1.
PS, Polystyrene (MW: 6,200)
2.
PS, Polystyrene (MW: 300)
3.
n-Propylbenzene
4.
Benzene
Columns : Shodex GPC KF-801 (8.0mmID*300mm)
Eluent : THF
Flow rate : 1mL/min
Detector : Shodex UV(254nm)
Column temp. : Room temp.
