The inter-day and intra-day precisions of the proposed method
were calculated by analyzing replicate (n = 5) vegetable oil sample
spiked with 0.5 mg L1 of analyte (Table 2). As it can be observed
the relative standard deviations (RSDs) calculated for the measured
concentrations are lower than 4.2%. In order to determine the accuracy
and the extraction recovery of the proposed method