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  • Title: Determination of toxaphene residues in fish foodstuff by GC-MS.
    Author: Barbini DA, Stefanelli P, Girolimetti S, Di Muccio A, Dommarco R.
    Journal: Bull Environ Contam Toxicol; 2007 Aug; 79(2):226-30. PubMed ID: 17680171.
    Abstract:
    A method for the determination of toxaphene residues in fish and fish-based baby foods has been developed. The cleanup of the fatty matrices was performed using an acid treatment on an Extrelut-NT3 and ENVI-Florisil SPE cartridges system, using light petroleum as eluent. Instrumental analysis was carried out by gaschromatography with mass spectrometry detector (GC/MS) in SIM mode. Recoveries from spiked samples were tested at 0.005 and 0.01 mg/kg per single congener and were in the range 82-104% while relative standard deviations (RSDs) were in the range 3.7-10.9%. Nineteen samples of both frozen fish food and fish-based baby foods representative of the Italian market were collected from local dealers and analysed.
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