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Ferulic acid at the concentration of 2.5 ng/ml in rat plasma was prepared and then injected into UPLC-MS/MS to determine the precision. Mean of the concentration (ng/ml) of ferulic acid in rat plasma, SD, RSD (%) and RE (%) was calculated, n = 6. a refers to relative errors. | ||||||||||||||||
Table 2: Precision and accuracy at the LOQ of 2.5 ng/ml for ferulic acid in rat plasma determined by UPLC-MS/MS method |