Figure 1

Accuracy and precision of the automated sample-preparation method compared with the conventional manual method. (a) Correlation of mean values (%) of 19 fatty acids (Table S1) measured by conventional (n = 26) and automated (n = 26) methods. (b) Scatterplot of the fatty-acid average against the standard deviation for both methods, showing the differences in precision (n = 26 both groups; based on Van Batenburg et al. [23]).