Heavy Metals in Food Products and Biological Samples from the Gdańsk District

Abstract

A review. Two methods for detn. of heavy metals in food products and biol. samples were used: at. absorption spectrometry (AAS) and anodic stripping voltammetry (ASV). The ASV method, due to concg. metal in the mercury film, makes it possible to det. very low concns., For Pb and Cd detn. by both methods the analyzed samples were mineralized in a microwave oven with use of nitric acid. Detn. of mercury in the food products was carried out using the mercury specific at. absorption analyzer (AMA 254) after thermal mineralization and preconcn. on the gold layer. Heavy metals were analyzed in the vegetables from the vicinity of busy roads (Pb, Cd), human milk (Pb, Cd, Cu), food products, such as flour, fish, sausage, milk, cheese, cream, cakes from a market place (Hg), human hair (Hg) and blood and urine of steel industry workers (Pb). The correlation between the exposure to hazardous metals and their concn. in the analyzed samples was established. [on SciFinder(R)]