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. 2013 Jul;24(2):62–72. doi: 10.7171/jbt.13-2402-003

FIGURE 2.

FIGURE 2

Extracted ion chromatograms for LC-MS analysis of BSA tryptic peptide QTALVELLK using each of the four chromatographic conditions analyzed. (A) Slow-gradient conditions using a 0.2 × 50-mm porous-particle column operated at 4 μL/min. (B) Fast-gradient conditions using a 0.2 × 50-mm porous-particle column operated at 9 μL/min. (C) Slow-gradient conditions using a 0.2 × 50-mm superficially porous-particle column operated at 4 μL/min. Fast-gradient conditions using a 0.2 × 50-mm superficially porous column operated at 9 μL/min.