Trace metals in mussel shells and corresponding soft tissue samples:: a validation experiment for the use of Perna perna shells in pollution monitoring

被引:49
作者
Bellotto, V. R.
Miekeley, N.
机构
[1] Pontificia Univ Catolica Rio de Janeiro, Dept Chem, BR-22451900 Rio De Janeiro, Brazil
[2] Univ Vale Itajai, Ctr Technol Earth & Ocean Sci, CTTMAR, BR-88302202 Itajai, Brazil
关键词
trace metals; mussel shells; Perna perna; LA-ICP-MS; marine pollution;
D O I
10.1007/s00216-007-1420-y
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
The uptake of Cr, Mn, Ni, Cu, Zn, Cd and Pb in soft tissue of Perna perna mussels and their shells has been studied in aquarium experiments in which mussels were exposed for 30 or 60 days to seawater spiked with different concentrations of these contaminants (125 and 500 mu g L-1). Tissue samples were analyzed after acid digestion by conventional solution nebulization ICP-MS. Laser ablation ICP-MS was used for the quantitative determination of trace elements in different areas of the corresponding shells. With the exception of Mn and Zn, all other elements studied showed a significant concentration enhancements in soft tissue, with the magnitude of this enhancement following the order: Cr > Ni > Cd > Cu > Pb. A corresponding increase in most contaminants, although less pronounced, was also observed in the newly formed growth rings of mussel shells, contributing to the validation of Perna perna mussel shell as a bioindicator of toxic elements.
引用
收藏
页码:769 / 776
页数:8
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