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Chemical ionization
Chemical ionization (CI) is an ionization technique used in mass spectrometry.
Ionization of sample (analyte) is achieved by interaction of its molecules with reagent ions. This is a less energetic procedure than Electron ionization and the ions produced are, for example, protonated molecules ([M + H]+). These ions are often relatively stable, tending not to fragment as readily as ions produced by Electron ionization.
10-26-2009 08:16:03
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details