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Graph showing the correlation of each indicated method (ordinate) with the PLA2 digestion (abscissa) performed on five regioisomeric mixtures of PC (16:0_18:1). The errors bars in x are from propagating the standard deviation in the mean of three replicates across three sample sets and are < 0.25% PC (18:1/16:0). Those in y are from the standard deviation in the mean of three replicates and are < 2% PC (18:1/16:0).
