Figure 7 High sensitivity detection of biuret peptide complexes by CLC-EC. Chromatograms are from injection of 1 µL of 100 pM bradykinin (B), 100 pM vasopressin (V), 400 pM oxytocin (O), and 1 nM neurotensin (N). (A) Raw chromatogram. (B) Chromatogram after median filtering. (C) Blank after median filtering. Chromatographic conditions same as Figure 5. Capillary column was 15 cm long by 25 µm i.d. fused silica capillary packed with 5 µm Astec C-18. The aqueous portion of

DOI link for Figure 7 High sensitivity detection of biuret peptide complexes by CLC-EC. Chromatograms are from injection of 1 µL of 100 pM bradykinin (B), 100 pM vasopressin (V), 400 pM oxytocin (O), and 1 nM neurotensin (N). (A) Raw chromatogram. (B) Chromatogram after median filtering. (C) Blank after median filtering. Chromatographic conditions same as Figure 5. Capillary column was 15 cm long by 25 µm i.d. fused silica capillary packed with 5 µm Astec C-18. The aqueous portion of

Figure 7 High sensitivity detection of biuret peptide complexes by CLC-EC. Chromatograms are from injection of 1 µL of 100 pM bradykinin (B), 100 pM vasopressin (V), 400 pM oxytocin (O), and 1 nM neurotensin (N). (A) Raw chromatogram. (B) Chromatogram after median filtering. (C) Blank after median filtering. Chromatographic conditions same as Figure 5. Capillary column was 15 cm long by 25 µm i.d. fused silica capillary packed with 5 µm Astec C-18. The aqueous portion of