Total Arsenic, Cadmium, and Lead Determination in Brazilian Rice Samples Using ICP-MS

Table 3

LOD, LOQ, working range, and correlation coefficient of calibration curve for the microwave digestion method.

Parameters (unit)	As	Cd	Pb
LOD (mg kg^−1)	0.011	0.012	0.030
LOQ (mg kg^−1)	0.038	0.040	0.064
Working range (µg L^−1)	1–40	1.2–24	1–20
Correlation coefficient of the calibration curve	0.9997	0.9997	0.9991, 0.9991, 0.9992

For Pb, calculated as the mean values among the three measured isotopes cited in Table 1.