TRACE-ELEMENT CONCENTRATIONS IN 10 SPECIES OF FRESH-WATER FISH OF BANGLADESH

The edible portions of whole fish excluding viscera and bone of 10 spe cies of small indigenous freshwater fish of Bangladesh, are analysed f or sodium, potassium, calcium, magnesium, iron, manganese, nickel, cop per, zinc, strontium and rubidium by atomic absorption spectrophotomet er (AAS). Analytical quality is calculated by analysis of standard ref erence material MA-A-2 (TM), fish flesh homogenate and MA-B-3(TM), fis h tissue (lyophilised) prepared by the International Laboratory of Mar ine Radioactivity of the International Atomic Energy Agency, Monaco. D ietary implications of the results are discussed. It is observed that four species of fish contain a higher amount of lead than the limit se t by the Australian National Health and Medical Research Council Stand ards (ANHMRC). The concentrations of lead and cadmium in the edible po rtions of other fish comply with the international standards for human consumption.