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Determination of inorganic arsenic in a wide range of food matrices using hybride generation - Atomic Absorption Spectrometry
de la Calle, M.B.; Devesa, V.; Fiamegos, Y.; Velez, D. (2017). Determination of inorganic arsenic in a wide range of food matrices using hybride generation - Atomic Absorption Spectrometry. Jove-Journal of Visualized Experiments 127: e55953. https://hdl.handle.net/10.3791/55953
In: Jove-Journal of Visualized Experiments: Cambridge. ISSN 1940-087X, more
Peer reviewed article  

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Keyword
Author keywords
    Environmental Sciences; Issue 127; Inorganic arsenic; rice; grain;vegetables; mushrooms; algae; fish; hydride generation

Authors  Top 
  • de la Calle, M.B., more
  • Devesa, V.
  • Fiamegos, Y.
  • Velez, D.

Abstract
    The European Food Safety Authority (EFSA) underlined in its Scientific Opinion on Arsenic in Food that in order to support a sound exposure assessment to inorganic arsenic through diet, information about distribution of arsenic species in various food types must be generated. A method, previously validated in a collaborative trial, has been applied to determine inorganic arsenic in a wide variety of food matrices, covering grains, mushrooms and food of marine origin (31 samples in total). The method is based on detection by flow injection-hydride generation-atomic absorption spectrometry of the iAs selectively extracted into chloroform after digestion of the proteins with concentrated HCl. The method is characterized by a limit of quantification of 10 mu g/kg dry weight, which allowed quantification of inorganic arsenic in a large amount of food matrices. Information is provided about performance scores given to results obtained with this method and which were reported by different laboratories in several proficiency tests. The percentage of satisfactory results obtained with the discussed method is higher than that of the results obtained with other analytical approaches.

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