Accuracy of a method based on atomic absorption spectrometry to determine inorganic arsenic in food: Outcome of the collaborative trial IMEP-41

F Cordeiro Fiamegkos, P Robouch, D Vélez, V Devesa, G Raber, JJ Sloth, R R Rasmussen, T Llorente-Mirandes, J F Lopez-Sanchez, R Rubio, F Cubadda, M D'Amato, J Feldmann, A Raab, H. Emteborg, M B de la Calle

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Abstract

A collaborative trial was conducted to determine the performance characteristics of an analytical method for the quantification of inorganic arsenic (iAs) in food. The method is based on (i) solubilisation of the protein matrix with concentrated hydrochloric acid to denature proteins and allow the release of all arsenic species into solution, and (ii) subsequent extraction of the inorganic arsenic present in the acid medium using chloroform followed by back-extraction to acidic medium. The final detection and quantification is done by flow injection hydride generation atomic absorption spectrometry (FI-HG-AAS). The seven test items used in this exercise were reference materials covering a broad range of matrices: mussels, cabbage, seaweed (hijiki), fish protein, rice, wheat, mushrooms, with concentrations ranging from 0.074 to 7.55 mg kg-1. The relative standard deviation for repeatability (RSDr) ranged from 4.1 to 10.3 %, while the relative standard deviation for reproducibility (RSDR) ranged from 6.1 to 22.8 %.
Original languageEnglish
Pages (from-to)169-179
Number of pages11
JournalFood Chemistry
Volume213
Early online date14 Jun 2016
DOIs
Publication statusPublished - 15 Dec 2016

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Atomic absorption spectrometry
atomic absorption spectrometry
Arsenic
arsenic
Spectrum Analysis
Food
Fish Proteins
Seaweed
hydrides
rice protein
Hydrochloric Acid
Bivalvia
Agaricales
hydrochloric acid
Brassica
Chloroform
solubilization
cabbage
Hydrides
chloroform

Keywords

  • inorganic arsenic
  • collaborative trial
  • cereals
  • vegetables
  • mushrooms
  • mussels
  • fish
  • algae

Cite this

Accuracy of a method based on atomic absorption spectrometry to determine inorganic arsenic in food : Outcome of the collaborative trial IMEP-41. / Fiamegkos, F Cordeiro; Robouch, P; Vélez, D; Devesa, V; Raber, G; Sloth, JJ; Rasmussen, R R ; Llorente-Mirandes, T; Lopez-Sanchez, J F; Rubio, R; Cubadda, F; D'Amato, M; Feldmann, J; Raab, A; Emteborg, H.; de la Calle, M B.

In: Food Chemistry, Vol. 213, 15.12.2016, p. 169-179.

Research output: Contribution to journalArticle

Fiamegkos, FC, Robouch, P, Vélez, D, Devesa, V, Raber, G, Sloth, JJ, Rasmussen, RR, Llorente-Mirandes, T, Lopez-Sanchez, JF, Rubio, R, Cubadda, F, D'Amato, M, Feldmann, J, Raab, A, Emteborg, H & de la Calle, MB 2016, 'Accuracy of a method based on atomic absorption spectrometry to determine inorganic arsenic in food: Outcome of the collaborative trial IMEP-41', Food Chemistry, vol. 213, pp. 169-179. https://doi.org/10.1016/j.foodchem.2016.06.033
Fiamegkos, F Cordeiro ; Robouch, P ; Vélez, D ; Devesa, V ; Raber, G ; Sloth, JJ ; Rasmussen, R R ; Llorente-Mirandes, T ; Lopez-Sanchez, J F ; Rubio, R ; Cubadda, F ; D'Amato, M ; Feldmann, J ; Raab, A ; Emteborg, H. ; de la Calle, M B. / Accuracy of a method based on atomic absorption spectrometry to determine inorganic arsenic in food : Outcome of the collaborative trial IMEP-41. In: Food Chemistry. 2016 ; Vol. 213. pp. 169-179.
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