Preliminary steps in validating an ICP-MS method for simultaneously analysis of six metals migration from food contact plastic materials into food simulants

Mustatea, G., Ungureanu, E. L., Belc, N., Iorga, E., Apostol, L.

Abstract

Food contact materials are all materials and articles intended to come into contact with food, such as packaging and containers, kitchen equipment, cutlery and dishes, made from a variety of materials including plastics, rubber, paper and metal. <BR />According to Regulation (EU) no. 10/2011, plastic materials and articles shall not release the following substances in quantities exceeding the specific migration limits below: Barium = 1 mg/kg, Cobalt = 0.05 mg/kg, Copper = 5 mg/kg, Manganese = 0.6 mg/kg and Zinc = 25 mg/kg. These metals migration is analyzed into food simulant B (3% acetic acid solution) as stated in the same Regulation. <BR />Determination of trace metal concentrations in the samples was performed with a Perkin Elmer NexION 300Q ICP-MS (Perkin-Elmer Inc., USA) equipped with cross-flow nebulizer and a Quartz torch. The ICP-MS NexION instrument software was used to control all instrument operations including tuning, data acquisition and data analysis. ICP-MS calibration solutions were prepared by dilution of a commercially available multi-element standard (SPEX CertiPrep) in ultrapure water and five-point calibration was performed for all the elements analyzed. <BR />In the first phase of the method validation plan the following parameters were determined: linearity, limit of detection, limit of quantification and recovery. In all cases, correlation coefficients of the calibration curves were higher than 0.996.

Download

IMEKO-TC23-2017-111.pdf

DOI

-

IMEKO TC

TC23 - Metrology in Food and Nutrition

Back to the proceedings