Direct exposure probe

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Direct exposure probe (DEP)
Device based on a modification of a direct insertion probe for exposing an involatile sample directly to the electron beam (in an electron ionization source) or to a chemical ionization plasma as in desorption chemical ionization.
Note: The sample can be deposited on an inert surface or on a heater filament for rapid heating.
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M. Vincenti. Int. J. Mass Spectrom. 212, 505 (2001).

R. J. Cotter. Anal. Chem. 51, 317 (1979). ( )

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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