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Publikationstyp
Wissenschaftlicher Artikel
Erscheinungsjahr
2015
Remobilization of sterically stabilized silver nanoparticles from farmland soils determined by column leaching
Remobilization of sterically stabilized silver nanoparticles from farmland soils determined by column leaching
Autor:innen
Herausgeber
Quelle
European Journal of Soil Science
66 (2015), H. 5
66 (2015), H. 5
Schlagwörter
Forschungskennzahl (FKZ)
Verbundene Publikation
Zitation
Remobilization of sterically stabilized silver nanoparticles from farmland soils determined by column leaching, 2015. European Journal of Soil Science [online]. Bd. 66 (2015), H. 5. DOI 10.60810/openumwelt-1265. Verfügbar unter: https://openumwelt.de/handle/123456789/7670
Zusammenfassung englisch
The increasing application of silver (Ag)-engineered nanoparticles (ENP) will enhance their release to the aquatic and terrestrial environments. Hence, the retention potential of the sterically stabilized Ag ENP (AgNM-300k, Organisation for Economic Cooperation and Development (OECD)) standard material was tested in a sandy Cambisol and in a clay- and silt-rich Luvisol. In addition, the remobilization potential of the same soils spiked with AgNM-300k was investigated in columns after 3 and 92?days of incubation. The AgNM-300k dispersion and the soil solutions were examined with dynamic light scattering (DLS). Inductively coupled plasma optical emission spectroscopy (ICP-OES) and inductively coupled plasma mass spectrometry (ICP-MS) were used to analyse soils and soil solutions subjected to different digestion and extraction techniques (aqua regia, nitric acid (HNO3) and EDTA (ethylenediamninetetraacetate)). The 24-hour batch test showed a 10-fold greater retention coefficient for AgNM-300k in the silt- and clay-rich Luvisol than in the sandy Cambisol. In addition, all applied extraction techniques indicate a greater potential for mobility of Ag ENP for the sandy Cambisol. However, a small release from the column of AgHNO3 (measured Ag content in the fraction