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. Author manuscript; available in PMC: 2020 Oct 15.
Published in final edited form as: Anal Chem. 2019 Dec 17;92(1):640–646. doi: 10.1021/acs.analchem.9b04131

Figure 4.

Figure 4.

Application of spray-capillary for low-volume sample injection and CE-MS analysis. (A) Calibration curve of standard peptides separation using the spray-capillary CE-MS platform (N = 3 for each experiment condition). (B) Reproducibility of peptide separation using the spray-capillary CZE-MS platform. Sample injection time is 60 s for all replicates. (C) EICs of Syn-2 (m/z = 503.30−503.37) with different sample injection times. (D) EICs of AngII (m/z = 523.77−523.80) with different sample injection times.