1220 Infinity II LC System User Manual 91
Solvent Delivery System Description
5
Principles of Operation
Table 17 Isocratic pump details
Dead volume 800 – 1100 µL, depending on back pressure
Materials in contact with mobile phase
Pump head SST, gold, sapphire, ceramic
Active inlet valve SST, gold, sapphire, ruby, ceramic, PTFE
Outlet valve SST, gold, sapphire, ruby
Adapter SST, gold
Purge valve SST, gold, PTFE, ceramic, PEEK
Degasser chamber TFE/PDD copolymer, FEP, PEEK, PPS
Table 18 Gradient pump details
Delay volume 800 – 1100 µL, dependent on back pressure
Materials in contact with mobile phase
MCGV PTFE
Pump head SST, gold, sapphire, ceramic
Active inlet valve SST, gold, sapphire, ruby, ceramic, PTFE
Outlet valve SST, gold, sapphire, ruby
Adapter SST, gold
Purge valve SST, gold, PTFE, ceramic, PEEK
Damping unit Gold, SST
Degasser chamber TFE/PDD copolymer, FEP, PEEK, PPS