Figure 49. Apci Probe Nozzle Assembly - Thermo Scientific LTQ Series Hardware Manual

Thermo Scientific
 To clean the APCI nozzle
IMPORTANT Always use LC/MS-grade methanol and LC/MS-grade water (see
Table 7 on page 55).
1. Remove the nozzle from the APCI probe body (see
2. Check the condition of the O-rings on the APCI nozzle

Figure 49. APCI probe nozzle assembly

3. Clean the interior APCI components (excluding the ceramic heater) with a 50:50
solution of methanol/water and a lint-free swab.
4. Dry the components with nitrogen gas to make sure that all the solvent evaporates.
5. Reinstall any O-rings removed while cleaning.
6. Do one of the following:
• If you do not want to replace the APCI sample tube, follow the procedure
reassemble the APCI probe"
• If you want to replace the sample tube, follow the procedure
sample tube" on
0.312 in. ID 0-ring
0.500 in. ID 0-ring
on page 78.
page 76.
5
Ion Source Probe Maintenance
page 74).
(Figure 49).
"To remove the APCI
LTQ Series Hardware Manual
Maintenance
"To
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