Abstract
Strictly, desorption is the term used to describe the transfer of atoms or molecules from a surface-adsorbed state into the gas phase. The study of pure desorption processes lies in the realm of surface science and is carried out using a well-defined sample, consisting of a submonolayer of atoms or small molecules, adsorbed to a surface of known structure. Mass spectrometrists use the term ‘desorption’ in a less rigorous sense to describe a range of techniques which are used to transfer atoms or molecules from the solid state into the gas phase. These methods include field desorption, plasma desorption, secondary ion mass spectrometry, fast atom bombardment and laser desorption. The sample is typically many monolayers thick, deposited on a crude substrate, and may consist of a mixture of complex organic molecules, one component of which acts as a matrix. In these methods, the desorption event generally results in the removal of several monolayers of material.
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© 1995 Plenum Press, New York
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Jones, A.C. (1995). Laser Desorption. In: Andrews, D.L., Demidov, A.A. (eds) An Introduction to Laser Spectroscopy. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-0337-4_11
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DOI: https://doi.org/10.1007/978-1-4613-0337-4_11
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