Technical data

Agilent 1290 Infinity LC System Manual and Quick Reference 87

System Setup and Installation

Installing the Module

2 In the Purge section, set the following parameters:

• Duration: 6 min

• Flow: 10 ml/min

• Composition B: 50 %

Composition A will automatically assume 50 %. Leave the On/Off button set to

Off. Click OK to exit.

3 Right-click on the pump section, and select Purge On from the context menu.

The purge valve will now switch the flow path to the purge position, and will

simultaneously purge both channels to waste at 5 ml/min each for 6 minutes

duration. After the set duration, the purge flow will turn off, the valve will

switch the flow path back to the system, and the flow rate and composition

currently set in the method will resume. In this example, the method flow is

still set to zero. The purge settings in the Control page from steps 1 and 2

remain configured so when the purge process is required again it can be

started at step 3.

When the pump has been initially primed and purged with propan-2-ol, the

solvents can be exchanged for the mobile phase solvents such as water and

methanol. The purge procedure is repeated whenever a solvent is exchanged.

Immediately following the purge, the solvent in the pump has not been

degassed and so the system should be operated for at least 10 min so that the

solvent is degassed.

NOTE

Do not confuse Purge On with the next item Prime On.