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5
Routine and Preventive Maintenance
Maintaining the Source Block Assembly
Assembling the Source Block Assembly
90
Surveyor MSQ Plus Hardware Manual
2. To clean the source block, sequentially sonicate it in the following solvents:
a. 1% v/v solution of formic acid / distilled water
b. 100% distilled water
c. 100% methanol
3. To clean the extraction cone:
a. Place the extraction cone, with the cone side facing upwards, into a beaker.
CAUTION Exercise great care when handling the extraction cone. Use tweezers to
handle the extraction cone and ensure that the cone side faces upwards when you
place the extraction cone on a solid surface.
b. Fill the beaker with 10% v/v solution of formic acid, and then sonicate for
approximately 15 min.
c. Decant the formic acid, fill the beaker with methanol, and then sonicate again for
approximately 15 min.
After you clean and dry the components of the source block assembly, reassemble it.
To reassemble the source block assembly
1. Install the three o-rings (see
• Top-left O-ring, 9.12 mm ID × 3.53 mm THK, viton black (P/N 00107-01-00047)
• Bottom-left O-ring, BS207, viton black (P/N FM101417)
• Right O-ring, BS225, viton black (P/N FM103048)
2. First install the extraction cone insulator (P/N FM102264). Then install the extraction
cone (P/N FM102263) with the cone facing the source block. And finally install the
hexapole screw insulator (P/N FM102248). See
3. Ensure that the semicircular cutouts in these three components line up as shown in
Figure
72.
4. Align the three spring screws at the base of the RF/dc prefilter to the three holes on the
backside of the source block. Support the quadrupole as you alternately screw the three
spring screws at the base of the RF/dc prefilter into the source block. See
page
86.
Figure
71):
Figure
71.
Figure 68
Thermo Scientific
on
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