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. Author manuscript; available in PMC: 2011 Dec 1.
Published in final edited form as: JALA Charlottesv Va. 2010 Dec;15(6):433–439. doi: 10.1016/j.jala.2010.06.004

Table 1.

Summary of the characteristics of the ambient ionization methods.

Ambient Ionization Voltage Consumable Suitable
Applications
DESI DC, 5 kV N2, 10 L/min;
Solvent, 1 μL/min		 Small organic to
large biomolecules
LTP AC, 3 kV, 3kHz Air or He2,
<400mL/min		 Gas, organic
compounds
Paper spray DC, 3-4.5 kV Paper substrate,
Solvent, 10 μL		 Small organic to
large biomolecules