Oxidative damage and fumonisin B1-induced toxicity in primary rat hepatocytes and rat liver in vivo |
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Authors: | S Abel WC Gelderblom |
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Affiliation: | Katholique University Leuven, Laboratory of Colloid Chemistry, Heverlee, Belgium. |
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Abstract: | The particle size distribution and the metal speciation of the heavy metals were investigated on dredged sediment and on the fractions obtained by mechanical agitated (Denver) flotation. The transition metal ions (cadmium, copper, lead and zinc) were flotated specifically independent of the particle size. Particle size analysis, EDTA extraction and sequential extracts indicated that during flotation a redistribution of metals occurred due to the oxidation of metal sulphides. This oxidation process was more pronounced when the flotation was performed at higher pH values and resulted in a decrease in flotation specificity. |
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