Characterization of volcanic ash nanoparticles and study of their fate in aqueous medium by asymmetric flow field-flow fractionation-multi-detection

Autor:	Stéphane, Faucher, Alexandr I, Ivaneev, Petr S, Fedotov, Gaëtane, Lespes
Rok vydání:	2020
Předmět:	Metal Nanoparticles Nanoparticles Water Volcanic Eruptions Particle Size Fractionation Field Flow
Zdroj:	Environmental science and pollution research international. 28(24)
ISSN:	1614-7499
Popis:	Dimensional and elemental characterization of environmental nanoparticles is a challenging task that requires the use of a set of complementary analytical methods. Asymmetric flow field-flow fractionation coupled with UV-Vis, multi-angle laser light scattering and ICP-MS detection was applied to study the nanoparticle fraction of a volcanic ash sample, in a Milli-Q water suspension at pH 6.8. It has been shown that the separated by sedimentation nanoparticle fraction of the Klyuchevskoy volcano ash suspension contains 3 polydisperse populations for which size ranges (expressed in gyration radius, rG), hydrodynamic behaviours (evaluated via shape index) and elemental compositions are different. These 3 populations did not dissolve over the 72-h study but aggregated and settled out differently. Thus, the population of particles with gyration radii140 nm (P1), which contained 6% Al
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=pmid________::2e0be05bec59b21af3fbdf50f6e73bbc https://pubmed.ncbi.nlm.nih.gov/33619622 Zobrazit plný text záznamu Full text from SpringerLink