This is a comparison of separation results obtained between two connected linear type columns (GPC KF-805L) and two connected conventional columns (KF-805 + KF-803). When different columns are connected, a shoulder appears, while no shoulder appears, when two of the same column type are connected.


Sample :
1. PS, Polystyrene (MW: 9,120,000)
2. PS, Polystyrene (MW: 1,100,000)
3. PS, Polystyrene (MW: 410,000)
4. PS, Polystyrene (MW: 128,000)
5. PS, Polystyrene (MW: 33,000)
6. PS, Polystyrene (MW: 10,200)
7. PS, Polystyrene (MW: 1,350)
8. n-Propylbenzene (MW: 120)

Columns      : Shodex GPC KF-805L x 2  : Shodex GPC KF-805 + KF-803
                                         (8.0 mm I.D. x 300 mm each)
Eluent       : THF                     : THF
Flow rate    : 1.0 mL/min              : 1.0 mL/min
Detector     : RI                      : RI
Column temp. : Room temp.              : Room temp.