Capillary electrophoretic separation and fractionation of hydrophobic peptides onto a pre-structured matrix assisted laser desorption/ionization target for mass spectrometric analysis
2006 (English)In: Journal of Separation Science, ISSN 1615-9306, E-ISSN 1615-9314, Vol. 29, no 2, 288-295 p.Article in journal (Refereed) Published
A CE separation of hydrophobic peptides followed by fractionation onto a prestructured MALDI target and off-line MS analysis was performed. An improved and partially automated manufacturing procedure of the previously described MALDI target is presented. This target is structurally coated with silicone and especially developed for hydrophobic peptides and proteins. Here, the target plate was designed specifically for the CE fraction collection. Different solvents were evaluated to meet the requirements of peptide solubility and compatibility to both the CE and MALDI methods and to the fractionation procedure. CE-MALDI-MS analysis of nine highly hydrophobic peptides from cyanogen bromide-digested bacteriorhodopsin is demonstrated.
Place, publisher, year, edition, pages
2006. Vol. 29, no 2, 288-295 p.
capillary electrophoresis, hydrophobic peptides, matrix-assisted laser desorption, ionization mass spectrometry, prestructured target
IdentifiersURN: urn:nbn:se:kth:diva-7874DOI: 10.1002/jssc.200500338ISI: 000235622100013ScopusID: 2-s2.0-33644507426OAI: oai:DiVA.org:kth-7874DiVA: diva2:13030
QC 201009012008-01-092008-01-092010-12-14Bibliographically approved