Fig. 4
From: Freeze-dried plasma proteins are stable at room temperature for at least 1 year
The quantification of C4B-peptide (NGFKSHALQLNNR) by random and independent sampling by LC–ESI–MS/MS. Panels: a, the quantile plot of the randomly sampled C4B peptides; b, the intensity values of the randomly sampled C4B-peptide log10 intensity value (arbitrary counts) over time. The probability that the time points were the same by ANOVA was p ≤ 0.001. The time point 0 refers to samples maintained on ice