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19. Check for leaks in the assembly by attaching the free end of the PEEK
tubing to an LC pump and pumping 1:1 acetonitrile/water through it at
1 mL/min.
20. If leakage occurs, disassemble and remake the connection, and then
repeat the leak test.
21. When performing the leak test, check the backpressure on the LC pump,
which will be relatively high if the capillary is blocked. If this is the case,
replace the capillary.
22. When the leak test is performed successfully, disconnect the PEEK
tubing from the LC pump.
23. Remove the PEEK tubing and compression screw from the LC union.
24. Slide the conductive sleeve onto the capillary, and then feed the
capillary through the probe.
5-58
Maintenance Procedures
Conductive sleeve
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