Comparison of the Applicability of Mass Spectrometer Ion Sources Using a Polarity—Molecular Weight Scattergram with a 600-Sample In-House Chemical Library

2015 ◽  
Vol 21 (2) ◽  
pp. 91-96 ◽  
Author(s):  
Natsuhiko Sugimura ◽  
Asami Furuya ◽  
Takahiro Yatsu ◽  
Toshimichi Shibue
Keyword(s):  
Molecular Weight ◽  
Mass Spectrometer ◽  
Ion Sources ◽  
Chemical Library

An Electron Current and Energy Regulator for Mass Spectrometer Ion Sources

1954 ◽  
Vol 25 (11) ◽  
pp. 1083-1088 ◽  
Author(s):  
Dwight A. Hutchison ◽  
Jay R. Wolff
Keyword(s):  
Mass Spectrometer ◽  
Ion Sources ◽  
Electron Current

scholarly journals Biomolecular Clusters Distribution up to Mega Dalton Region Using MALDI-Quadrupole Ion Trap Mass Spectrometer

2018 ◽  
Vol 19 (9) ◽  
pp. 2789 ◽  
Author(s):  
Yung-Kun Chuang ◽  
Szu-Hsueh Lai ◽  
Jung-Lee Lin ◽  
Chung-Hsuan Chen
Keyword(s):  
Molecular Weight ◽  
Cytochrome C ◽  
Mass Spectrometer ◽  
Ion Trap ◽  
Quadrupole Ion Trap ◽  
Charge Ratio ◽  
Ion Trap Mass Spectrometer ◽  
Quantitative Results ◽  
A Charge ◽  
Large Clusters

We present the first report on complete cluster distributions of cytochrome c (molecular weight of 12.4 kDa) and bovine serum albumin ((BSA), molecular weight of 66.4 kDa) with mass-to-charge ratio (m/z) reaching 350,000 and 1,400,000, respectively, by matrix-assisted laser desorption/ionization (MALDI). Large cluster distributions of the analytes were measured by our homemade frequency-scanned quadrupole ion trap (QIT) mass spectrometer with a charge detector. To our knowledge, we report the highest m/z clusters of these two biomolecules. The quantitative results indicate that large clusters ions of cytochrome c and BSA follow the power law (r2 > 0.99) with cluster size distribution, which provides experimental evidence for the laser ablation studies of MALDI.

High-resolution mass spectrometer for liquid metal ion sources

2013 ◽  
Vol 84 (9) ◽  
pp. 093305 ◽  
Author(s):  
Martin Wortmann ◽  
Arne Ludwig ◽  
Jan Meijer ◽  
Dirk Reuter ◽  
Andreas D. Wieck
Keyword(s):  
High Resolution ◽  
Liquid Metal ◽  
Mass Spectrometer ◽  
Metal Ion ◽  
Ion Sources ◽  
High Resolution Mass ◽  
High Resolution Mass Spectrometer ◽  
Resolution Mass

Loss of atomic oxygen in mass spectrometer ion sources

1973 ◽  
Vol 78 (10) ◽  
pp. 1645-1653 ◽  
Author(s):  
Leo R. Lake ◽  
Alfred O. Nier
Keyword(s):  
Mass Spectrometer ◽  
Atomic Oxygen ◽  
Ion Sources

Discrimination in Mass Spectrometer Ion Sources

1944 ◽  
Vol 12 (1) ◽  
pp. 19-23 ◽  
Author(s):  
Norman D. Coggeshall
Keyword(s):  
Mass Spectrometer ◽  
Ion Sources
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