Metals. Determination by atomic absorption spectrophotometry in foodstuffs. (NMKL 139, 1991, 2nd ed. 2016)


(Recommended by Codex as Codex General Method) Method for quantitative determination of metals (lead, cadmium, chromium, copper, iron, zinc and nickel) in all kinds of food products by atomic absorption spectrophotometry (AAS) after dry ashing. The samples are dried and then ashed at 450°C, under gradual temperature increase. Hydrochloric acid is added and the solution obtained evaporated to dryness. The residue is dissolved in 0.1 mol/l nitric acid and the metal contents are determined by AAS by flame and graphite procedures. Metallit. Atomiabsorptiospektrofotometrinen määritys elintarvikkeista. (NMKL 139, 1991, 2nd ed. 2016)
  • Produkt ID: NMKL139
  • Copyright: NMKL
  • Edition: 1991

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