Abstract
Selected organs (gill, mantle, muscle, gonad) and the total soft tissue of zebra mussels (Dreissena polymorpha) collected from a 54-km long Danube-branch near Budapest were analysed by total reflection X-ray fluorescence spectrometry. For sample preparation a microwave assisted vapour-phase digestion technique was used. Nine elements (Ca, Cu, Fe, K, Mn, Ni, Pb, Sr, Zn) were detectable in the samples. The K distribution was nearly homogeneous among the organs investigated. A considerable enrichment for Ca and Sr in the mantle and a moderate enrichment of Fe, Zn and Mn also in the mantle and/or the gill, of Ni in the muscle, and of Cu in the gill were observed.
ACKNOWLEDGMENTS
The authors gratefully acknowledge the financial support of the Hungarian National Science Foundation (OTKA) T 030845 and of the Hungarian Academy of Sciences AKP 98-91 2.4.