Calibration curve data of cyto. c, BSA, myoglobin and CA (A-D). Base peak electropherograms of the standard protein mixture with a sample injection volume 175 nL (E) and 700 nL (F). (a): cyto.c; (b): BSA; (c): myoglobin; (d):CA. The standard protein mixture for Figures (E) and (F) contained cyto.c (0.0125 mg/mL), BSA (0.125 mg/mL), myoglobin (0.0125 mg/mL), and CA (0.0625 mg/mL).