Figure 9From: SELDI-TOF-MS determination of hepcidin in clinical samples using stable isotope labelled hepcidin as an internal standard Assessment of reproducibility. Two serum samples (A: grey bars, B: black bars) were assayed in quadruplicate each day for 5 days. The bars represent the mean concentration calculated each day for each sample by the peak height ratio approach. Error bars represent +/- 1 standard deviation.Back to article page