6
Connecting the Inlet Plumbing
Setting Up the Inlet for High-Flow Infusion
Thermo Scientific
LTQ Series Getting Connected Guide
49
Connecting the Union Tee to the Ion Source
Y
To connect the union Tee to the ion source
1. Using a fingertight fitting and a ferrule, connect one end of a length of red PEEK tubing
to the union Tee.
shows the connections to the union Tee.
2. Depending on whether you are using the ESI probe or the APCI probe, do one of the
following:
• For the APCI probe, use a fingertight fitting and a ferrule to connect the other end of
the tubing directly to the sample inlet of the APCI probe.
shows the
connection between the union Tee and the sample inlet of the APCI probe.
Figure 31.
Plumbing diagram showing APCI/MS sample introduction with high-flow infusion
• For the ESI probe, use a fingertight fitting and a ferrule to connect the other end of
the tubing to the grounding union that is held by the grounding bar of the Ion
Max-S API source. See
The grounding union slides into the grounding bar on the Ion Max-S API source as
shown in
on
. For instructions on connecting the grounding union
to the ESI probe sample inlet, refer to the
Ion Max and Ion Max-S API Source
Hardware Manual
.
Note
Do not use the grounding bar of the Ion Max-S API source for the APCI
probe. A knurled nut secures the grounding bar to the Ion Max-S ion source. You
do not need to remove the grounding bar to run the system in the APCI mode.
From TEE
to sample inlet
of APCI probe
From port 1 to waste container
From port 3 to TEE
From syringe to TEE
From LC pump outlet to port 2