Determination of Cd, Cu, Fe, Mn, Pb and Zn in marine environmental samples by ICP-MS

The paper presents new results concerning Cd, Cu, Fe, Mn, Pb and Zn determination in marine biotope (sediment and water) and biocenosis (algae, crustaceans and fish) collected in 2003 and 2004 from the Romanian Black seacoast southern part, between Mangalia and Vama Veche. The solid samples were carefully washed, dried and mineralized with nitric acid and hydrogen peroxide in a Digesdahl device. Metal concentration was determined by atomic emission spectrometry with an Agilent 7500a ICP-MS apparatus. In solid samples, the levels of Cd varied from 0.02 to 0.45 mu g/g, Cu from 0.15 to 13.53 mu g/g, Fe from 0.075 to 1.700 mg/g, Mn from 2.59 to 100 mu g/g, Pb from 0.47 to 5.76 mu g/g and Zn from 1.79 to 5.76 mu g/g. In water, mean metal concentrations were of mu g/L levels, except Fe.