GE AKTApure, User Manual, Page: 244 / 522

6.9 System Test UV U9-L (fixed)
Method description
The System test with UV monitor U9-L checks the functionality of the solvent delivery, the pumps, the
System pump pressure sensor, UV monitor U9-L and the Conductivity monitor.
The method run takes approximately 35 minutes.
Required configuration
A correctly installed UV monitor U9-L and a correctly installed Conductivity monitor are required to
run the test.
Required material
The following materials are required:
• Distilled water
• 1% acetone and 1.00 M NaCl in distilled water
• Ref 1 tubing, see Reference capillary, on page 426.
• Syringe, 25-30 ml
• Mixer, 1.4 ml
Prepare the test
Follow the instructions below to prepare the system before method start.
Action Step
Direct outlet tubing W and W1 to a waste container. 1
Place inlet tubing A1 into distilled water. 2
Place inlet tubing B1 into a solution of 1% acetone and 1.00 M NaCl in distilled water. 3
Connect the Ref 1 tubing between Injection valve port Col and the UV monitor U9-L inlet,
to generate a back pressure. 4
Make sure that the Mixer with a chamber volume of 1.4 ml is installed. 5
For further information, see Section 7.8.3 Replace the Mixer, on page 322.
Prime the buffer inlets and purge System pump A and System pump B. See Section 5.4.1
System pumps, on page 162. 6
If the test is performed at cold room temperature, select Conductivity:Cond temp compensa-
tion in the System Settings dialog, and set the Compensation factor to 2.1. Note:
244 ÄKTA pure User Manual 29119969 AB
6 Performance tests
6.9 System Test UV U9-L (fixed)