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Keywords:

  • arsenic;
  • cod-liver oil;
  • fatty acids;
  • lipids;
  • mass spectrometry
Thumbnail image of graphical abstract

A bit fishy: Six arsenolipids have been isolated from cod-liver oil and identified by HPLC and mass spectrometry as a series of arsenic-containing long-chain fatty acids (for example, see picture). These fatty acids account for about 20 % of the total arsenolipid content of cod-liver oil.