Figure 3From: Development and evaluation of an immuno-MALDI (iMALDI) assay for angiotensin I and the diagnosis of secondary hypertensionCorrelation of iMALDI with RIA and LC/MS/MS. A) Difference plot comparisons for RIA and iMALDI. B) Difference plot comparison for LC/ESI-MS/MS and iMALDI.Back to article page