Columns: PrincetonSFC Silica, 5 μm
Dimensions: 250 x 4.6 mm
Eluent: CO2 - CH3OH (70:30)
Additive: 0.1% TEA
Flow Rate: 2.0 ml/min
Detection: UV at 273 nm

1. Timolol
2. Oxprenolol
3. Metroprolol
4. Propranolol
5. Pindolol
6. Acebutolol
7. Atenolol