Certification of total arsenic, dimethylarsinic acid and arsenobetaine contents in a tuna fish powder (BCR-CRM 627)

Tuna fishes were collected in the Straits of Messina (Italy), were dissected and dorsal muscles minced, freeze-dried, ground and sieved. The obtained powder was stabilised by -irradiation and filled into brown glass bottles. The homogeneity and stability at +20 degree C and +40 degree C were verifie...

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Bibliographic Details
Published in:Fresenius' journal of analytical chemistry 1999-01, Vol.363 (1), p.18-22
Main Authors: LAGARDE, F, AMRAN, M. B, LARSEN, E, BONNER, P, RAURET, G, FOULKES, M, HOWARD, A, GRIEPINK, B, MAIER, E. A, LEROY, M. J. F, DEMESMAY, C, OLLE, M, LAMOTTE, A, MUNTAU, H, MICHEL, P, THOMAS, P, CAROLI, S
Format: Article
Language:English
Subjects:
Animal, plant and microbial ecology
Applied ecology
arsenobetaine
Biological and medical sciences
dimethylarsinic acid
Ecotoxicology, biological effects of pollution
Fish and seafood industries
Food industries
Fundamental and applied biological sciences. Psychology
Italy, Messina Straits
Techniques
Thunnus
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Summary:Tuna fishes were collected in the Straits of Messina (Italy), were dissected and dorsal muscles minced, freeze-dried, ground and sieved. The obtained powder was stabilised by -irradiation and filled into brown glass bottles. The homogeneity and stability at +20 degree C and +40 degree C were verified with regards to the total arsenic, dimethylarsinic acid and arsenobetaine contents. Ten laboratories participated in the certification study. All participants had demonstrated beforehand their ability to produce accurate results for the As speciation in fish tissue. The certified values are: total arsenic (4.8 plus or minus 0.3) mg/kg, arsenobetaine (52 plus or minus 3) mu mol/kg, dimethylarsinic acid (2.0 plus or minus 0.3) mu mol/kg. The material is available from the BCR since early 1998.
ISSN:0937-0633
1432-1130
DOI:10.1007/s002160051131