column and to the LC pump (Figure 3A). Figure 2. The Aijiren Infi nity Flexible Cube is an additional module for the Aijiren / Infi nity LC system, using one or two Aijiren Infi nity Series Quick-Change valves. Solvent selection valve Quick-Change valves 1 and 2 (three wash solvents) Piston pump (4 mL/min, 60 bar) Rail for