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Questions and Answers List

Question	Answer
Large neutral atoms, like argon or xenon gas, is ionized by a stream if electrons. The ions are directed at a column with neutral atoms of the same gas. The collisions cause the slow moving neutral atoms to act as fast moving atoms. This stream of fast moving atoms is then directed at the analyte.	FAB
An ion source (Electron beam) collides with gas phase molecules of an analyte	EI
A spray of solvent is directed into a vacuum. The droplets of solvent are desolvated using heat or collisions with dry gas until the non fragmented ions are liberated.	ESI
Sample is mixed with a solid matrix that absorbs laser radiation. The excited matrix causes the analyte to be expelled and then ionized in the gaseous phase	MALDI
an ionized reagent gas collides with the analyte to ionize the sample.	CI
Time of Flight Measured time taken for ions to travel a distance in a tube	TOF
soft ionization	fast atom bombardment
Hard ionization	Electron ionization
Soft ionization	Electron Spray Ionization
soft ionization methods	matrix assisted laser desorption ionization
Soft ionization method	chemical ionization