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. Author manuscript; available in PMC: 2020 Jun 8.
Published in final edited form as: Anal Chem. 2020 Mar 27;92(7):4711–4715. doi: 10.1021/acs.analchem.9b05639

Figure 2.

Figure 2.

(A) PicoLC-MS base peak chromatogram of 7.5 pg S. oneidensis tryptic digest. (B) Box plots of peak widths at base for the identified peptide peaks from peptide loadings of 0.75 pg, 7.5 pg, and 75 pg and a separation gradient of 30 min.