title: Determination of arsenic, cadmium, mercury, and lead in foods by pressure digestion and inductively coupled plasma/ mass spectrometry: first action 2013.06.
abstract: The method for the determination of As, Cd, Hg, and Pb in foods by pressure digestion and inductively coupled plasma (ICP)/MS, previously published in J. AOAC Int. 90, 844-856 (2007), was approved as First Action 2013.06 on April 9, 2013 by the Method- Centric Committee for Elemental Contaminants in Food. Digestion occurs using nitric acid in a closed vessel with elevated temperature and pressure by conventional or microwave-assisted heating. Determination occurs using ICP/MS. The elemental concentration ranges for As were 0.06-21.4, for Cd 0.03-28.3, for Hg 0.04-0.6, and for Pb 0.01-2.4 in mg/kg dry matter. The repeatability RSD (RSDr) ranged from 3.8 to 24% for As, 2.6 to 6.9% for Cd, 4.8 to 8.3% for Hg, and 2.9 to 27% for Pb. Reproducibility RSD (RSDR) ranged from 9.0 to 28% for As, 2.8 to 18% for Cd, 9.9 to 24% for Hg, and 8 to 50% for Pb.
authors.affiliation: National Institute of Nutrition and Seafood Research (NIFES), P.O. Box 2029, Nordnes, 5817 Bergen, Norway. kju@nifes.no
authors.forename: Kaare
authors.initials: K
authors.lastname: Julshamn
authors.forename: Amund
authors.initials: A
authors.lastname: Maage
authors.forename: Hilde Skaar
authors.initials: HS
authors.lastname: Norli
authors.forename: Karl H
authors.initials: KH
authors.lastname: Grobecker
authors.forename: Lars
authors.initials: L
authors.lastname: Jorhem
authors.forename: Peter
authors.initials: P
authors.lastname: Fecher
authors.forename: Dawn
authors.initials: D
authors.lastname: Dowell
mesh_terms: D001151:Arsenic / Q000032:analysis*; D002104:Cadmium / Q000032:analysis; D005504:Food Analysis / Q000379:methods*; D007854:Lead / Q000032:analysis; D013058:Mass Spectrometry / Q000379:methods*; D008628:Mercury / Q000032:analysis; D019216:Metals, Heavy / Q000032:analysis*; D015203:Reproducibility of Results; D013054:Spectrophotometry, Atomic / Q000379:methods*
chemical_list: D019216:Metals, Heavy; D002104:Cadmium; D007854:Lead; D008628:Mercury; D001151:Arsenic