“…The correlation coefficient (R), the characteristic mass (m 0 ), limits of detection (LOD) and quantification (LOQ) defined as the analyte concentration corresponding to an integrated absorbance signal equal to three times and ten times the standard deviation of the blank, respectively, obtained for lead and cadmium are also shown in Table 3. The characteristic mass values, LOD and LOQ are in agreement with literature values for both analytes, 32,33 and lower than the maximum levels of 0.20 and 0.10 mg kg À1 for lead and cadmium, respectively, in bovine, pig, and equine meat established by the Brazilian regulations. 3…”