Water as a useful calibrant for thermospray mass spectrometry.
The present report demonstrates that thermospray liquid chromotography/mass spectrometry (LC/MS) calibration can be easily achieved by the observation of water cluster ions in filament-on or discharge ionization modes. Cluster ions of sizes ranging from 1 to 44 water molecules are readily observed and thus are useful over the mass range from 17 to 792 Da.
Hsu
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Washington University School of Medicine, Department of Medicine, St Louis, Missouri 63110.
D002138:Calibration; D013058:Mass Spectrometry / Q000379:methods*; D014867:Water
D014867:Water