Fig. 4.

Protein quantification and analysis of contaminating plasma proteins (a) Diagram showing the difference in concentration of total protein after UC and SEC. (b). Table showing the percentage of residual peptides in some of the major contaminating plasma proteins when comparing isolating exosomes using ultracentrifugation (UC) alone or using UC coupled with size exclusion chromatography (SEC), using the mean from four different samples.(c)Table showing the percentage of residual contamination of 3 Albumin peptides, regarding signal intensity, when comparing isolating exosomes using ultracentrifugation coupled with size exclusion chromatography (SEC) compared to UC alone, using the mean from four different samples.