PMID: 16524105Mar 10, 2006Paper

Capillary electrophoretic separation and fractionation of hydrophobic peptides onto a pre-structured matrix assisted laser desorption/ ionization target for mass spectrometric analysis

Journal of Separation Science
Johan JacksénAsa Emmer

Abstract

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.

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Citations

Dec 1, 2006·Journal of Mass Spectrometry : JMS
Nov 30, 2007·Electrophoresis·Václav Kasicka
Apr 11, 2009·Journal of Separation Science·Bryan R Fonslow, John R Yates
Apr 7, 2010·Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences·Johan JacksénAsa Emmer

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