Comparison of Separation: Linear Type and Conventional Type (2)

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 (8.0mmID*300mm each)
Eluent       : THF                     : THF
Flow rate    : 1.0mL/min               : 1.0mL/min
Detector     : Shodex RI               : Shodex RI
Column temp. : Room temp.              : Room temp.