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

Table 1

Inductively Coupled Plasma Mass Spectrometry (ICP-MS) operating conditions.

RF power, W	1400
Plasma gas flow rate, L min^−1	18
Auxiliary gas flow rate, L min^−1	1
Nebulizer gas flow rate, L min^−1	1.02
Integration time, ms	750 (per isotope)
Isotopes monitored	^72Ge, ^75As, ^111Cd, ^115In, ^187Re, ^206Pb, ^207Pb, ^208Pb

Internal standards.
When referring to Pb concentration, the values are expressed as the mean between the three isotopes.