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

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left" rowspan="2">Preparation procedure</td><td class="align_center" colspan="3">Recovery (%)</td></tr><tr class="thead"><td class="align_center">Arsenic</td><td class="align_center">Cadmium</td><td class="align_center">Lead</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">Muffle oven</td><td class="align_center">91.7</td><td class="align_center">89.3</td><td class="align_center">98.2</td></tr><tr><td class="align_left">Metallic block</td><td class="align_center">103.3</td><td class="align_center">94.2</td><td class="align_center">95.7</td></tr><tr><td class="align_left">Hot plate</td><td class="align_center">115.0</td><td class="align_center">81.0</td><td class="align_center">102.0</td></tr><tr><td class="align_left">Microwave</td><td class="align_center">108.7</td><td class="align_center">110.2</td><td class="align_center">92.8</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Recovery of total arsenic, cadmium, and lead from rice sample submitted to different preparation procedures (ashing in muffle oven, acid digestion under heating on metallic block or hot plate, and acid digestion assisted by microwave radiation). The analytes concentrations were determined using ICP-MS.

Journal of Analytical Methods in Chemistry

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Table 2

Table 2: Total Arsenic, Cadmium, and Lead Determination in Brazilian Rice Samples Using ICP-MS 