| Literature DB >> 26944281 |
Julia L Kaszycki1, Andrew P Bowman1, Alexandre A Shvartsburg2.
Abstract
Differential or field asymmetric waveform ion mobility spectrometry (FAIMS) operating at high electric fields fully resolves isotopic isomers for a peptide with labeled residues. The naturally present isotopes, alone and together with targeted labels, also cause spectral shifts that approximately add for multiple heavy atoms. Separation qualitatively depends on the gas composition. These findings may enable novel strategies in proteomic and metabolomic analyses using stable isotope labeling.Entities:
Keywords: Differential IMS (FAIMS); Ion mobility spectrometry; Isotopic analyses; Isotopomers
Mesh:
Substances:
Year: 2016 PMID: 26944281 PMCID: PMC5030822 DOI: 10.1007/s13361-016-1367-3
Source DB: PubMed Journal: J Am Soc Mass Spectrom ISSN: 1044-0305 Impact factor: 3.109