Other

Battelle Memorial Institute

Indiana University

Alexander W Graham

Gary M Hieftje

Charles J Barinaga

David W Koppenaal

Christie Enke

Steven J Ray

Elise Dennis

A combined distance-of-flight mass spectrometry (DOFMS) and time-of-flight mass spectrometry (TOFMS) instrument includes an ion source configured to produce ions having varying mass-to-charge ratios, a first detector configured to determine when each of the ions travels a predetermined distance, a second detector configured to determine how far each of the ions travels in a predetermined time, and a detector extraction region operable to direct portions of the ions either to the first detector or to the second detector.

Combined distance-of-flight and time-of-flight mass spectrometer

Novel methods and instrumentation for mass spectrometry are described. Zoom-time of flight mass spectrometry (Zoom-TOF) allows increased mass resolution over a pre-determined specific range of masses. Methods for retrofitting traditional time-of-flight (TOF) and distance of flight (DOF) mass spectrometers are described, as well as novel instruments capable of performing Zoom-TOF analyses.

Method for enhancement of mass resolution over a limited mass range for time-of-flight spectrometry

Growing community of inventors

Bloomington, IN, United States of America

Alexander W Graham