Determination of toxaphene residues in fish foodstuff by GC-MS.
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.
Barbini
D Attard
DA
Dipartimento Ambiente e Connessa Prevenzione Primaria, ISS, Istituto Superiore di Sanità, viale Regina Elena, 299, 00161 Rome, Italy. danilo.attardbarbini@iss.it
Stefanelli
P
P
Girolimetti
S
S
Di Muccio
A
A
Dommarco
R
R
D000818:Animals; D005396:Fish Products / Q000032:analysis*; D005506:Food Contamination / Q000032:analysis*; D008401:Gas Chromatography-Mass Spectrometry; D007225:Infant Food / Q000032:analysis; D007306:Insecticides / Q000032:analysis*; D007558:Italy; D010573:Pesticide Residues / Q000032:analysis*; D014112:Toxaphene / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*
D007306:Insecticides; D010573:Pesticide Residues; D014874:Water Pollutants, Chemical; D014112:Toxaphene