Performance of the new high mass resolution time of flight atom probe

1981 ◽  
Vol 52 (6) ◽  
pp. 810-818 ◽  
Author(s):  
Osamu Nishikawa ◽  
Kazuaki Kurihara ◽  
Masahiro Nachi ◽  
Morikazu Konishi ◽  
Minoru Wada
Keyword(s):  
Time Of Flight ◽  
Atom Probe ◽  
Mass Resolution ◽  
High Mass ◽  
Resolution Time ◽  
High Mass Resolution

scholarly journals High mass resolution MALDI-TOF MS for profiling biomolecules in mixtures

2018 ◽  
Author(s):  
Wenfa Ng
Keyword(s):  
Mass Spectrometry ◽  
Time Of Flight ◽  
High Sensitivity ◽  
Mass Resolution ◽  
High Mass ◽  
Maldi Tof Ms ◽  
Maldi Tof ◽  
Flight Mass Spectrometry ◽  
High Mass Resolution ◽  
Tof Ms

Intact biomolecules carry its identity through its atomic constituents and mass, while fragmented biomolecules require reconstruction for their identity to be retrieved. Hence, for profiling biomolecules in mixtures, the goal would be the gentle ionization of biomolecules by mass spectrometry without inducing fragmentation. Doing so generates an ensemble of ionized intact biomolecules able to be profiled by high sensitivity time-of-flight detector for accurate determination of each biomolecule mass, and thus, identity. Specifically, in time-of-flight detection, high mass resolution determination would require high sensitivity in detecting small differences in time of arrival of biomolecule ions to the detector. While current time-of-flight mass spectrometry provides high mass resolution, greater mass resolution is needed for discriminating different biomolecules in a mixture, where mass differences between biomolecules could be at the sub-Dalton level. With the ability to reliably detect biomolecules with sub-Dalton mass resolution, mass spectrometry with time-of-flight detector such as matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) could find use in identifying the compendium of biomolecules present in a mixture without tedious and time-consuming separation. The larger question would subsequently be coupling sample preparation needs with the conditions conducive for MALDI-TOF MS analysis. Overall, high mass resolution mass spectrometry techniques for profiling biomolecules would find use as an enabling tool in many areas of analytical science and biological sciences such as proteomics and metabolomics.

Performance Advantages of a Modern, Ultra-High Mass Resolution Atom Probe

2008 ◽  
Vol 14 (S2) ◽  
pp. 454-455 ◽  
Author(s):  
P Clifton ◽  
T Gribb ◽  
S Gerstl ◽  
RM Ulfig ◽  
DJ Larson
Keyword(s):  
New Mexico ◽  
Atom Probe ◽  
Mass Resolution ◽  
High Mass ◽  
High Mass Resolution

Extended abstract of a paper presented at Microscopy and Microanalysis 2008 in Albuquerque, New Mexico, USA, August 3 – August 7, 2008

scholarly journals An ion trap time-of-flight mass spectrometer with high mass resolution for cold trapped ion experiments

2017 ◽  
Vol 88 (12) ◽  
pp. 123107 ◽  
Author(s):  
P. C. Schmid ◽  
J. Greenberg ◽  
M. I. Miller ◽  
K. Loeffler ◽  
H. J. Lewandowski
Keyword(s):  
Mass Spectrometer ◽  
Ion Trap ◽  
Time Of Flight ◽  
Mass Resolution ◽  
High Mass ◽  
Trapped Ion ◽  
Flight Mass Spectrometer ◽  
High Mass Resolution
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