GE AKTA avant User Manual page 67

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Current mixing percentage for Q1-Q4 are shown in Process Picture in System Control.

The curves for Q1-Q4 can be shown in a chromatogram and stored in the result data

for documentation and for further studies in Evaluation.

Ports of Quaternary valve

The following illustration shows the ports of the Quaternary valve.

The BufferPro tool allows automatic mixing of buffers during a run. Buffer preparation

can be performed using corresponding acid/base buffer systems. Buffer system, concen-

tration, pH and salt gradient are defined in the Method Editor.

When using BufferPro, immerse the Q inlets in the solutions according to the following

ÄKTA avant User Manual 29035184 AE

Buffer inlets

Outlet to System pump A via Inlet valve A

Outlet to System pump B via Inlet valve B

In ÄKTA avant 25 BufferPro can be run at flow rates up to 25 ml/min. In ÄKTA

avant 150 BufferPro can be run at flow rates up to 40 ml/min.

Buffer stock solution

Acid or base

3 Standard instrument modules

Gradient salt stock solution

3.4 Inlet valves

Troubleshooting