A method for determination of retention of silver and cerium oxide manufactured nanoparticles in soils

• DOI: 10.1071/en10013
• Publication Date: 2010-06-22T07:04:05Z
• Authors: Geert Cornelis; Jason K. Kirby; Douglas Beak; David Chittleborough; Mike J. McLaughlin
• Keywords: Cerium oxide

Environmental context.Soils are the environmental compartment likely to be exposed most manufactured nanoparticles, but there is no method available at present assess their retention, which determines potential mobility and bioavailability. Optimisation application of a determine retention values for silver (Ag) cerium oxide (CeO2) nanoparticles in soils found many cases that they differed from partitioning bulk soluble counterparts. Wider this can assist comparing risk different with other contaminants soil systems model relationship properties. Abstract.Methods study (MNP) lacking increasingly MNP. In we present, first time, (Kr) Ag CeO2 MNP, ranked among solid–liquid (Kd) (micrometre-sized) forms, salts possible soils. After optimisation, suspensions containing 1.24 mg kg–1 as MNP 1.30 Ce were added five More than 7% occurred AgI after 24 h range Kr (77–2165 L kg–1) (1.1–2828 contrasted Kd AgI, CeIII CeIV powders