61603 20170628234247.0 doi 10.1039/c4en00060a sideral 98830 ART-2014-98830 eng Gomez, V. Identification of TiO2 nanoparticles using La and Ce as labels: Application to the evaluation of surface contamination during the handling of nanosized matter 2014 Access copy available to the general public Unrestricted Distinguishing nanomaterials of interest from background nanosized matter already present in the sampling environment is a challenging task. In this study, we propose the use of rare earth elements (REEs) as high-sensitivity labels to identify and to monitor their fate following manipulation. The REE labels were added during the synthesis of TiO<inf>2</inf> nanoparticles with hydrodynamic sizes of 15 nm. The REE-labelled nanomaterials allow the monitoring of nanoparticle aerosols formed during handling of nanoparticulate materials in a glove box. The deposition of the labelled TiO<inf>2</inf> nanoparticles on working surfaces could be verified by electron microscopy and surface analysis, using the presence of lanthanide elements as an identification label. The total amount of TiO<inf>2</inf> nanoparticles in the deposited material could be quantified by a procedure based on wiping the deposition area followed by digestion of the collected matter and analysis by flame emission spectrometry. © 2014 the Partner Organisations. info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 0.0 2014 ENVIRONMENTAL SCIENCES NANOSCIENCE & NANOTECHNOLOGY CHEMISTRY, MULTIDISCIPLINARY info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion (orcid)0000-0002-8787-117X Clemente, A. (orcid)0000-0002-2966-9088 Irusta, S. Universidad de Zaragoza (orcid)0000-0001-5512-0075 Balas, F. Universidad de Zaragoza (orcid)0000-0002-8701-9745 Santamaria, J. Universidad de Zaragoza 5005 555 Universidad de Zaragoza Departamento de Ingeniería Química y Tecnologías del Medio Ambiente Ingeniería Química 1, 5 (2014), 496-503 Environ. sci. nano Environmental science. Nano 2051-8153 476495 http://zaguan.unizar.es/record/61603/files/texto_completo.pdf Postprint 115105 http://zaguan.unizar.es/record/61603/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:61603 articulos driver 2017-06-28-09:47:37 ARTICLE