Figure 2From: Development and validation of a robust automated analysis of plasma phospholipid fatty acids for metabolic phenotyping of large epidemiological studiesThe Shewhart quality control (QC) chart of 20-month individual measurements for phospholipid docosahexaenoic acid (DHA) (C(22,6n3)) and eicosapentaenoic acid (EPA) ((C(20,5n3)) in the QC material (QC1).Back to article page