Solvent Compatibility of EV-2000 (2)

The in-column solvent of CLNpak EV-2000 can be replaced easily without affecting column performance.
The column shipping solvent of EV-2000 column is ethyl acetate/cyclohexane(3/7).
(1) After pumping dichloroethane/cyclohexane(3/7) at 2mL/min for 2h.
(2) After pumping acetone/cyclohexane(2/8) at 2mL/min for 2h.
(3) After pumping dichloroethane/cyclohexane(3/7) at 2mL/min for 2h.
(4) After pumping acetone/cyclohexane(2/8) at 2mL/min for 2h.


Sample :
1. Corn oil
2. Fluvalinate
3. Chinomethionate

Columns      : Shodex CLNpak EV-G (20mmID*100mm) + EV-2000 (20mmID*300mm) 
Flow rate    : 4.0mL/min
Detector     : UV(254nm)
Column temp. : 25deg-C