Extended Data Fig. 1: Comparison of the peptide retention times obtained by a μPAC and a fused silica capillary column.

a, The histograms illustrate the distribution of coefficients of variation (CVs) calculated from peptide retention times obtained by a μPAC and a fused silica capillary column. The CVs were calculated for peptides from 12 measurements of a HeLa cell digest on each column. b, All components, including lines, connectors, the column and the emitter, are displayed together with grounding and spray voltage connections. The pico tip emitter is from New Objective (catalogue number FS360-20-10-N-5-105CT).