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Integrated immunoaffinity extraction and μCE of PTB biomarkers in human blood serum. Electropherograms of AF 488-labeled spiked human serum, (A) before and (B) after on-chip immunoaffinity extraction. Elution/injection times were: (A) 1 min and (B) 15 s. (C) Electropherogram of AF 488-labeled unspiked human serum after on-chip immunoaffinity extraction and μCE. Elution time was 15 s.
