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Schuhmann, K.* ; Herzog, R.* ; Schwudke, D.* ; Metelmann-Strupat, W.* ; Bornstein, S.R.* ; Shevchenko, A.*

Bottom-up shotgun lipidomics by higher energy collisional dissociation on LTQ Orbitrap mass spectrometers.

Anal. Chem. 83, 5480-5487 (2011)
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Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Higher energy collision dissociation (HCD) is a complementary fragmentation tool that has recently become available on mass spectrometers of the LTQ Orbitrap family. We report on a shotgun bottom-up lipidomics approach that relies on HCD of the isolated lipid precursors. HCD, together with the high mass resolution and mass accuracy of the Orbitrap analyzer, improved the confidence of molecular species assignment and accuracy of their quantification in total lipid extracts. These capabilities were particularly important for accounting for biologically interesting lipid species comprising polyunsaturated and odd numbered fatty acid moieties. We argue that now both bottom-up and top-down shotgun lipidomics could be performed on the same instrumentation platform.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
ISSN (print) / ISBN 0003-2700
e-ISSN 1520-6882
Zeitschrift Analytical Chemistry
Quellenangaben Band: 83, Heft: 14, Seiten: 5480-5487 Artikelnummer: , Supplement: ,
Verlag American Chemical Society (ACS)
Begutachtungsstatus
Institut(e) Institute for Pancreatic Beta Cell Research (IPI)