GCMS-QP2010 Series Operation Guide 17
2.7 Autotuning
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2.7.3
Checking Autotuning Results
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Check the results of autotuning.
1 Check that the FWHM (full width at half maximum) values are in the range 0.5 to 0.7.
2 Check that the detector voltage does not exceed 2 kV.
3 Check that the base peak values are 18 or 69.
4 Check that the relative intensity ratio for m/z 502 is at least 2 % (for QP2010S and SE : 1 %).
5 Check that the peak intensity for m/z 69 is at least twice that for m/z 28.
If any irregularities are discovered above, possible causes could include a vacuum leak, poor
column connections, or contaminated ion source.
See "Appendix D Maintenance" P.83 to implement corrective measures.
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