Fig. 2From: An LC–MS-based designated comparison method with similar performance to the Lp(a) reference measurement procedure to guide molar Lp(a) standardizationIon ratio monitoring of the results obtained with the RMP (top panel) and the DCM (lower panel). Ion ratios were defined as the ratio between the quantifying transition and each of the qualifying transitions (Table 2). Dotted lines indicate different measurement batches, which may have occurred at different instruments (n = 4) for the DCM, resulting in inter-batch variability. However, within a batch, consistent ion ratios are observedBack to article page