13
Day 1
4. Leak Check, Auto-tuning
Leak check
Check for air leaks with the instrument unheated, as described in section 4.2 Leak Check
of
the Operation Guide.
□ Is m/z28 within twice m/z18?
Set the temperature of the ion source, INJ, COL, and interface and repeat the check to
ensure stability.
□ Is the temperature stable (Has the READY lamp gone out?)
□ Is m/z28 within twice m/z18?
Auto-tuning
Check that auto-tuning can be conducted normally.
Conduct auto-tuning, as described in section 5.1 Auto-tuning
of the Operation Guide.
□ Is the detector voltage in the tuning report 1.8kV or less?
□ 0.10 maximum discrepancy between FWHM for m/z69, 219, and 502?
□ Is m/z69, 131, 219, 264, 414, 502, and 614 mass-number displacement C0.10 max.?
Checks on the Peak Monitor window
□ Does the peak intensity change when each lens voltage is changed?
□ Does the m/z69, 219, and 502 peak amplitude drop below 0.50 when the RF offset is
increased?
The checkbox marks (□) indicate check items in the Installation Completion Checksheet
(ZEAV-0416).
Settings at the end of the initial day
Set a high GC total flowrate (100 to 200 mL/minute) to lower the residual air in the carrier
gas.
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