title: Robust Method Using Online Steric Exclusion Chromatography-Ultraviolet-Inductively Coupled Plasma Mass Spectrometry To Investigate Nanoparticle Fate and Behavior in Environmental Samples.
abstract: The foundation of nanoscience is that the properties of materials change as a function of their physical dimensions, and nanotechnology exploits this premise by applying selected property modifications for a specific benefit. However, to investigate the fate and effect of the engineered nanoparticles on toxic metal (TM) mobility, the analytical limitations in a natural environment remain a critical problem to overcome. Recently, a new generation of size exclusion chromatography (SEC) columns developed with spherical silica is available for pore sizes between 5 and 400 nm, allowing the analysis of nanoparticles. In this study, these columns were applied to the analysis of metal-based nanoparticles in environmental and artificial samples. The new method allows quantitative measurements of the interactions among nanoparticles, organic matter, and metals. Moreover, because of the new nanoscale SEC, our method allows the study of these interactions for different size ranges of nanoparticles and weights of organic molecules with a precision of 1.2 × 10(-2) kDa. The method was successfully applied to the study of nanomagnetite spiked in complex matrixes, such as sewage sludge, groundwater, tap water, and different artificial samples containing Leonardite humic acid and different toxic metals (i.e., As, Pb, Th). Finally, our results showed that different types of interactions, such as adsorption, stabilization, and/or destabilization of nanomagnetite could be observed using this new method.
authors.affiliation: CNRS UMR 6118, Géosciences Rennes, Université Rennes 1 , Campus Beaulieu, 263 av. Général Leclerc, 35042 Rennes Cedex, France.
authors.forename: Maya
authors.initials: M
authors.lastname: Al-Sid-Cheikh
authors.affiliation: CNRS UMR 6118, Géosciences Rennes, Université Rennes 1 , Campus Beaulieu, 263 av. Général Leclerc, 35042 Rennes Cedex, France.
authors.forename: Mathieu
authors.initials: M
authors.lastname: Pédrot
authors.affiliation: CNRS UMR 6118, Géosciences Rennes, Université Rennes 1 , Campus Beaulieu, 263 av. Général Leclerc, 35042 Rennes Cedex, France.
authors.forename: Martine
authors.initials: M
authors.lastname: Bouhnik-Le Coz
authors.affiliation: CNRS UMR 6118, Géosciences Rennes, Université Rennes 1 , Campus Beaulieu, 263 av. Général Leclerc, 35042 Rennes Cedex, France.
authors.forename: Aline
authors.initials: A
authors.lastname: Dia
authors.affiliation: CNRS UMR 6118, Géosciences Rennes, Université Rennes 1 , Campus Beaulieu, 263 av. Général Leclerc, 35042 Rennes Cedex, France.
authors.forename: Mélanie
authors.initials: M
authors.lastname: Davranche
authors.affiliation: CNRS UMR 6226, Institut des Sciences Chimiques de Rennes, Université Rennes 1 , Campus Beaulieu, 263 av. Général Leclerc, 35042 Rennes Cedex, France.
authors.forename: Chrystelle
authors.initials: C
authors.lastname: Neaime
authors.affiliation: CNRS UMR 6226, Institut des Sciences Chimiques de Rennes, Université Rennes 1 , Campus Beaulieu, 263 av. Général Leclerc, 35042 Rennes Cedex, France.|CNRS-Saint Gobain, Laboratory for Innovative Key Materials and Structures, UMI 3629 LINK, National Institute of Material Science , 1-1 Namiki, 305-0044, Tsukuba, Japan.
authors.forename: Fabien
authors.initials: F
authors.lastname: Grasset