Marc Bisson

TL;DR: In this paper, an analytical procedure involving sequential chemicai extractions was developed for the partitioning of particulate trace metals (Cd, Co, Cu, Ni, Pb, Zn, Fe, and Mn) into five fractions: exchangeable, bound to carbonates, binding to Fe-Mn oxides and bound to organic matter.

TL;DR: Regression analysis indicates that Cu, Pb, and Zn levels in various tissues of E. complanata are best related, not to total metal concentrations in the adjacent sediment, but rather to one or more of the relatively easily extracted fractions.

TL;DR: Water and suspended sediment samples were collected at 12 stations on the Yamaska and St Francois Rivers, located in southeastern Quebec, and were analyzed for trace metals Cd, Co, Cu, Ni, Pb as discussed by the authors.

TL;DR: In this article, sediment samples were collected from streambeds in an undisturbed watershed in eastern Quebec (Gaspe Peninsula) and each sediment subsample was then subjected to a sequential extraction procedure designed to partition the particulate heavy metals into five fractions: (1) exchangeable; (2) specifically adsorbed or bound to carbonates; (3) bound to Fe-Mn oxides; (4) binding to organic matter; (5) residual.

TL;DR: The determination of the physical speciation of aluminum in water samples by filtration through polycarbonate membranes proved feasible; control experiments revealed neither contamination nor analyte loss as mentioned in this paper.