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Application of Molecular Beam Deflection Time-of-Flight Mass Spectrometry to Peptide Analysis

Analytical Chemistry, ISSN: 0003-2700, Vol: 75, Issue: 20, Page: 5512-5516
2003
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Article Description

The application of molecular beam deflection time-of-flight mass spectrometry (MBD-TOFMS) to peptide identification is described. The technique permits a simultaneous measurement of molecular mass and electric dipole susceptibility. The mass and susceptibility are not strongly correlated, and the results can be presented as a two-dimensional map. The susceptibility provides a useful way to disperse isobaric and isomeric peptides, and at least for small peptides, the susceptibility is significantly different for different amino acid sequences. Results for peptides in the mass range 1000-2300 Da show that the mass and susceptibility lead to a higher identification score than mass spectra alone.

Bibliographic Details

Antoine, Rodolphe; Compagnon, Isabelle; Rayane, Driss; Broyer, Michel; Dugourd, Philippe; Sommerer, Nicolas; Rossignol, Michel; Pippen, David; Hagemeister, Frederick C; Jarrold, Martin F

American Chemical Society (ACS)

Chemistry

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