Routine and Preventive Maintenance
The Source Block Assembly _______________________________________________________________
PEEK fitting
Locking plate
APCI blank plug
Entrance cone
Cone wash nozzle
Figure 5-5. ESI probe assembly and source block enclosure
Cleaning the Extraction Cone
The starting point for this procedure is the source block assembly removed
from the MSQ and disassembled.
Caution.
Exercise great care when handling the extraction cone. Always
store with the cone facing upward.
Note.
To prevent the cone being damaged, it is recommended that you
place a clean lint-free cloth in the beaker and use tweezers to handle the
extraction cone.
1. Sonicate the cone, first in a 10% v/v solution of formic acid and then in
methanol.
5-20
__________________________ MSQ Hardware Manual ____________________________