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06 May 2010
DEVELOPING DETECTION METHODS FOR HEAVY METALS
Recently there has been a lot of focus on inorganic arsenic in foodstuffs with relation to food safety, emphasized by two recent opinions from EFSA (October 2009) and JECFA (March 2010). In both cases inorganic arsenic is focused upon as the most toxic arsenic species and more specific data on inorganic arsenic in foodstuffs are called upon. In CONffIDENCE WP3 one of the objectives is the development of a method for the selective determination of inorganic arsenic based on solid phase extraction (SPE) for separation followed by determination by HG-AAS. The method principle is illustrated on the right.
SPE-HGAAS (mg/kg) |
HPLC-ICPMS (mg/kg) |
|
CRM TORT-2 (lobster hepatopancreas)(Lobster hepatopancreas) |
0,94 |
0,95 |
Blue mussel |
0,38 |
0,37 |
Shrimp |
0,22 |
0,20 |