Tandem Time-of-Flight Mass Spectrometer
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United States of America Patent
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Issued Date -
Sep 15, 2011
app pub date -
Feb 14, 2011
filing date -
Mar 11, 2010
priority date (Note) -
Abandoned
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Abstract
A tandem time-of-flight (TOF) mass spectrometer is offered whose first mass analyzer is a TOF mass spectrometer having a flight distance smaller than the flight distance sufficient to impart a desired mass resolution to the first mass analyzer. When a mass spectrum is measured with the first mass analyzer, a reflectron field is activated. When precursor ions are selected by the first mass analyzer, the reflectron field is deactivated to permit ions to pass through without being reflected.
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