Abstract
Exposure to metals and trace elements (TE) is universal and can cause toxicity in case of excessive exposure. We evaluated the concentrations and tissue distribution of 39 TE using high-resolution ICP-MS after total mineralization by microwave in twenty autopsied French subjects. We found a globally homogeneous distribution of TE in the body, with some accumulations in agents, involved in respiratory pathologies and classified as carcinogens, in the lungs. The liver, an organ of metabolism, appeared to concentrate Co, Fe, La, Mn, Mo, Pb and Zn. Fe seemed to accumulate in the spleen, the organ of hematopoiesis. The kidney showed high concentrations of some TE, which can cause nephrotoxicity. The use of microwave mineralization and high-resolution ICP-MS allowed accurate quantification and a very high sensitivity, without spectral interferences. The results obtained in this study could be used to support the interpretation of post-mortem metal concentrations in tissues.
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