Determination of Seven Elements in EU Food Contact Plastic Materials and Vessels by ORS-ICP-MS
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Abstract:
According to the EU No.10/2011 on plastic materials and articles intended to come into contact with food, the contents of Ba, Co, Cu, Fe, Li, Mn, Zn from food contact plastic materials and articles were determined by ORS-ICP-MS. Analytical conditions of ICP-MS were optimized in quantification to afford elimination of mass spectral interferences. For all elements, the correlation coefficient of the calibration curves was above 0.999 and the detection limits were in the range of 0.4~16 μg/L. The relative standard deviations were less than 3.5%. The recoveries are in the range of 86.2%~108.5%. The method was simple, sensitive and accurate. This method can meet the testing requirement of EU 10/2011 of food contact plastic materials and articles.
