Solvent Handling - Agilent Technologies 1290 Infinity II User Manual

3
Using the Pump
Solvent Recommendation for Agilent 1290 Infinity and 1290 Infinity II and 1260 Infinity II Flexible Pumps
Table 4
Inlet valves
Outlet valves
Corrosion of valves
C AU T I O N
Normal phase balls/valves corrode quickly in aqueous solutions and acids (at or
below pH 7).
➔

Solvent Handling

Handling of Normal Phase Solvents
Observe the following recommendations when using normal phase solvents:
• Always use fresh, filtered solvents. Exchange solvents every second day.
• Prevent reactions caused by heat, light and oxygen. Use brown, firmly
• Whenever possible, use stabilizers, e.g. butylated hydroxytoluene (BHT) for
• Use isopropanol (IPA) to flush out the previous solvent when converting a
• Store all unused channels in IPA.
• Don't turn off the pump while it is filled with low boiling solvents. Generate
46
Recommended valves for normal phase applications
Binary or High Speed Pumps
1290 Infinity Inlet Valve Type N
(G4220-60122)
1290 Infinity Outlet Valve Type N
(G4220-60128)
Do not use normal phase valves in applications running with aqueous solutions.
closed bottles.
ethyl ether.
system from normal phase to reverse phase, or vice versa.
a small flow throughout the used channels when the pump is not in use.
Quaternary or Flexible Pumps
1290 Infinity Quat Inlet Valve Type N
(G4204-60122)
1290 Infinity Outlet Valve Type N
(G4220-60128)
1290 Infinity II High Speed Pump User Manual