Delayed extraction

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Delayed extraction (DE)
Application of the accelerating voltage pulse after a time delay in desorption ionization from a surface.

Note: The extraction delay can produce energy focusing in a time-of-flight mass spectrometer.

Related Term(s): time-lag focusing

R. J. Cotter. Time-of-Flight Mass Spectrometry: Instrumentation and Applications in Biological Research, American Chemical Society, Washington, DC (1997).

M. L. Vestal, P. Juhasz, S. A. Martin. Rapid Commun. Mass Spectrom. 9, 1044 (1995). ( )

From Definitions of Terms Relating to Mass Spectrometry (IUPAC Recommendations 2013); DOI: 10.1351/PAC-REC-06-04-06 © IUPAC 2013.

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