Compound QC Concentration (nM) Intra-day Inter-day Accuracy (%) CV (%) Accuracy (%) CV (%) LV 2 104.9 2.9 105.3 6.8   10 99.9 3.4 102.7 3.2   50 97.7 7.8 98.2 0.4 LVA 2 103.6 4.8 98.5 3.7   10 94.5 1.7 99.5 4.1   50 94.6 9.8 95.7 2.9 CV, coefficient of variance

Table 1: Intra-day and inter-day accuracy and precision for LV and LVA.