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Orbitrap Calibration issue

gpandey
Involved Contributor
Involved Contributor

Hi,
We have an Orbitrap Velos mass spectrometer. We are having trouble calibrating the same, and the data we get is inaccurate. The spray seems to be stable. I have tried cleaning the ion transfer tube, changing LC solvents, and using a new Calmix. All the tests pass except for 'Positive Ion Multiplier Gain Calibration.' I would really appreciate any help in this regard.

Thanks,
Gaurav

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