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Brooks Rand Labs authored a method for the analysis of the “Big 4” (arsenic, cadmium, lead, and mercury) in food that was recently published as an AOAC First Action Official Method of Analysis. AOAC Method 2015.01 for Heavy Metals in Food by Inductively Coupled Plasma – Mass Spectroscopy (ICP-MS) is applicable to the analysis of a wide variety of matrix types, such as chocolate, fruit juice, fish, infant formula, and rice. The method was specifically written for detection of low-level concentrations of these contaminants, with reporting limits in the 8 – 10 μg/kg (ppb) range, and it utilizes the robust sample preparation power of microwave digestion along with the sensitivity and specificity of ICP-MS detection. The AOAC Method 2015.01 is now available for download. To submit your food or supplement samples for testing, download our Sample Submission Form.