A need for determination of arsenic species at low levels in cereal-based food and infant cereals. Validation of a method by IC-ICPMS
Por:
Llorente-Mirandes, T, Calderon, J, Centrich, F, Rubio, R, Lopez-Sanchez, JF
Publicada:
15 mar 2014
Resumen:
The present study arose from the need to determine inorganic arsenic (iAs) at low levels in cereal-based food. Validated methods with a low limit of detection (LOD) are required to analyse these kinds of food. An analytical method for the determination of iAs, methylarsonic acid (MA) and dimethylarsinic acid (DMA) in cereal-based food and infant cereals is reported. The method was optimised and validated to achieve low LODs. Ion chromatography-inductively coupled plasma mass spectrometry (IC-ICPMS) was used for arsenic speciation. The main quality parameters were established. To expand the applicability of the method, different cereal products were analysed: bread, biscuits, breakfast cereals, wheat flour, corn snacks, pasta and infant cereals. The total and inorganic arsenic content of 29 cereal-based food samples ranged between 3.7-35.6 and 3.1-26.0 mu g As kg(-1), respectively. The present method could be considered a valuable tool for assessing inorganic arsenic contents in cereal-based foods. (C) 2013 Elsevier Ltd. All rights reserved.
Filiaciones:
Llorente-Mirandes, T:
Univ Barcelona, Dept Analyt Chem, ES-08028 Barcelona, Spain
Calderon, J:
Lab Publ Hlth Agcy Barcelona, Chem, ES-08001 Barcelona, Spain
Centrich, F:
Lab Publ Hlth Agcy Barcelona, Chem, ES-08001 Barcelona, Spain
CIBER Epidemiol & Publ Hlth CIBERESP, Madrid, Spain
Rubio, R:
Univ Barcelona, Dept Analyt Chem, ES-08028 Barcelona, Spain
Lopez-Sanchez, JF:
Univ Barcelona, Dept Analyt Chem, ES-08028 Barcelona, Spain
Green Accepted
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