PL
Oznaczono zawartość Hg, Pb, Cd w próbkach pięciu rodzajów pieczywa pochodzącego z różnych regionów kraju, o zróżnicowanym stopniu skażenia środowiska.
EN
Measurements of mercury, lead, and cadmium concentrations by AAS were carried out in five bakery products (rye bread, Graham bread, Graham bread roll, buttery bread roll, choice („wyborowa") bread roll) originated from the following three regions: Lublin, Poznań, and Katowice. Mercury was assayed after samples mineralization in the Bothe type apparatus using cold vapour technique. Cadmium and lead were determined after dry mineralization in quartz crucible pots at 400°C using extraction technoque and metals complexing with APDC. Average concentrations as followis were found: mercury - a few microgrammes per kg (twice more in samples taken from industrial region); cadmium - from 0.013 to 0.018 mg/kg in rye bread, from 0.030 to p.041 mg/kg in wheaten bread from not polluted area, from 0.059 to 0.089 mg/kg in wheaten bread from industrial region, from 0.083 to 0.089 mg/kg in Graham bread from industrial region; lead - from 0.030 to 0.207 mg/kg in bread samples taken from not polluted area, from 0.070 to 0.400 mg/kg in samples taken from industrial region.