Research Article
Total Arsenic, Cadmium, and Lead Determination in Brazilian Rice Samples Using ICP-MS
Table 5
Concentrations of total arsenic, cadmium, and lead in the analyzed rice samples (average values,
).
| Rice type | As | Cd | Pb | mg kg−1 |
| Parboiled | 0.061 ± 0.008 | <0.040 | <0.030 | Parboiled | 0.080 ± 0.008 | <0.040 | 0.127 ± 0.027 | Polished | 0.074 ± 0.008 | <0.040 | <0.030 | Polished | 0.062 ± 0.008 | <0.040 | <0.030 | Polished | 0.232 ± 0.007 | 0.042 ± 0.008 | <0.030 | Polished | 0.147 ± 0.008 | <0.040 | <0.030 | Polished | 0.135 ± 0.008 | <0.040 | <0.064 | Polished | 0.128 ± 0.008 | <0.012 | <0.030 | Polished | 0.156 ± 0.008 | <0.040 | <0.030 | Polished | 0.181 ± 0.008 | <0.012 | <0.030 | Polished | 0.133 ± 0.008 | <0.012 | <0.030 | Polished | 0.172 ± 0.008 | <0.012 | <0.030 | Polished | 0.109 ± 0.008 | <0.012 | <0.030 | Polished | 0.211 ± 0.007 | <0.040 | <0.030 | Polished | 0.178 ± 0.008 | <0.040 | 0.087 ± 0.028 | Polished | 0.125 ± 0.008 | <0.012 | <0.064 | Polished | 0.108 ± 0.008 | <0.012 | 0.115 ± 0.027 | Polished | 0.062 ± 0.008 | <0.040 | <0.064 | Polished | 0.157 ± 0.008 | <0.040 | <0.064 | Polished | 0.155 ± 0.008 | <0.012 | <0.064 | Polished | 0.167 ± 0.008 | <0.040 | <0.064 | Polished | 0.116 ± 0.008 | <0.012 | <0.064 | Polished | 0.119 ± 0.008 | <0.012 | <0.064 | Polished | 0.113 ± 0.008 | <0.012 | <0.064 | Polished | 0.166 ± 0.008 | <0.012 | <0.030 | Polished | 0.131 ± 0.008 | <0.012 | <0.064 | Polished | 0.245 ± 0.007 | <0.012 | <0.030 | Polished | <0.038 | <0.012 | <0.030 | Polished | <0.038 | <0.040 | <0.064 | Brown | 0.165 ± 0.008 | <0.040 | <0.064 | Brown | 0.160 ± 0.008 | <0.040 | 0.104 ± 0.027 | Brown | 0.660 ± 0.007 | <0.040 | <0.064 | Brown | 0.175 ± 0.008 | <0.040 | <0.064 | Brown | 0.166 ± 0.008 | <0.040 | 0.065 ± 0.028 | Brown | 0.190 ± 0.007 | <0.012 | 0.124 ± 0.027 | Brown | 0.180 ± 0.008 | <0.040 | 0.123 ± 0.027 | Brown | 0.101 ± 0.008 | <0.012 | <0.064 |
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LOD, LOQ. : expanded uncertainty, coverage factor , for a confidence level of 95.45%.
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