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  A total of 100 samples were collected from 5 kinds of Caned fish from retail shops to test for content of Lead, Copper, Tin and Cadmium residues. All the samples were prepared by the method recommended by (A.O.A.C) and were checked by Potentiometric Stripping Analysis Method (P.S.A). Data were compared with the permitted level of each metal by using one sample T test, also the ANOVA test was used to compare the amount of each metal among the samples. The results showed that mean value of Lead, Copper, Tin & Cadmium residues in the samples were 99.6 ppb, 2.087 ppm, 2.578 ppm and 0.031 ppm respectively. The mean value of residues of Lead, Cadmium, Tin and copper in fish cans were in the standard range but 28.4% of the samples contain Lead and 2% contain Cadmium more than standard limit. The amount of Copper, Tin residues were in the standard range. There was the significant difference in the Copper and Cadmium residues among the different kind of cans (P<0.05) but there was no significant difference in Lead and Tin residues among the different kind of cans (P>0.05).  Regarding to the results of this study some of the fish can producing in Iran containing Cupper, Tin and Lead residue more than standard limit of these metals in this product. Therefore it is recommended to conduct the other study to confirm the source of these metals in fish cans.

Keywords: Key words: Lead, Tin, Cupper, Cadmium and Fish can

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