PULSED MASS CALIBRATION IN TIME-OF-FLIGHT MASS SPECTROMETRY

PULSED MASS CALIBRATION IN TIME-OF-FLIGHT MASS SPECTROMETRY

A method is provided for calibrating mass-to-charge ratio measurements obtained from a time-of-flight mass spectrometer used as a detector for a chromatographic system. The method can include introducing a calibrant material into the time-of-flight mass spectrometer after a sample is introduced to t...

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Bibliographische Detailangaben
1. Verfasser: LEDFORD, EDWARD, B., JR
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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Beschreibung
Zusammenfassung:A method is provided for calibrating mass-to-charge ratio measurements obtained from a time-of-flight mass spectrometer used as a detector for a chromatographic system. The method can include introducing a calibrant material into the time-of-flight mass spectrometer after a sample is introduced to the chromatographic system, but before the analysis of the sample is complete, such that calibrant material and sample material are not present at the ion source of the mass spectrometer, contemporaneously, and back-flushing residual or leaking calibrant through a back-flush line and away from the mass spectrometer.