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Food Addit Contam Part B Surveill. 2012;5(4):229-35. doi: 10.1080/19393210.2012.698312. Epub 2012 Jul 24.

Total and inorganic arsenic in fish samples from Norwegian waters.

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a National Institute of Nutrition and Seafood Research (NIFES) , Bergen , Norway.


The contents of total arsenic and inorganic arsenic were determined in fillet samples of Northeast Artic cod, herring, mackerel, Greenland halibut, tusk, saithe and Atlantic halibut. In total, 923 individual fish samples were analysed. The fish were mostly caught in the open sea off the coast of Norway, from 40 positions. The determination of total arsenic was carried out by inductively coupled plasma mass spectrometry following microwave-assisted wet digestion. The determination of inorganic arsenic was carried out by high-performance liquid chromatography-ICP-MS following microwave-assisted dissolution of the samples. The concentrations found for total arsenic varied greatly between fish species, and ranged from 0.3 to 110 mg kg(-1) wet weight. For inorganic arsenic, the concentrations found were very low (<0.006 mg kg(-1)) in all cases. The obtained results question the assumptions made by the European Food Safety Authority (EFSA) on the inorganic arsenic level in fish used in the recent EFSA opinion on arsenic in food.


Atlantic halibut; Greenland halibut; HPLC-ICP-MS; ICP-MS; cod; fish fillet; herring; inorganic arsenic; mackerel; saithe; total arsenic; tusk

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