Figure 3From: Immobilized pH gradient-driven paper-based IEF: a new method for fractionating complex peptide mixtures before MS analysisMini gel SDS-PAGE analysis of peptide fractions resulting from PIEF using a Cy3-labeled model synthetic peptide 72109 on a pH 3-10 IPG strip. Lane 1: left electrode pad fraction 1. Lane 2: left electrode pad fraction 2. Lanes 3-14: fractions from paper strips 1-12. Lane 15: sample buffer.Back to article page