126330 20240319081023.0 doi 10.1039/d2ja00026a sideral 129647 ART-2022-129647 eng Ojeda, D. Exploring the boundaries in the analysis of large particles by single particle inductively coupled plasma mass spectrometry: application to nanoclays 2022 Access copy available to the general public Unrestricted The analysis of microparticles by single particle inductively coupled plasma mass spectrometry (SP-ICP-MS) requires sample introduction systems that guarantee transport efficiencies similar to those obtained with dissolved standards across the size range covered. The utilization of a nebulisation system based on a linear pass spray chamber and a micronebuliser is discussed and optimized for the introduction of large inorganic particles. Limitations caused by incomplete ionisation or the counting limit of detectors affecting particle size characterisation are also considered. The procedure developed has been applied to the characterisation of suspensions of a natural clay (kaolinite), with a thickness in the range of a few nanometers and lateral dimensions up to 1 mu m. The application of different sensitivity conditions by the modification of the ion transmission allowed us to cover the whole size range of the suspension monitoring the Al-27 isotope and achieve a quantitative mass recovery with respect to ICP-MS analysis. Finally, the migration of nanoclays (montmorillonite) from food containers and their detection by SP-ICP-MS are presented. The results have been compared to those obtained by TEM, showing that nanoclays migrated from the containers into water. info:eu-repo/grantAgreement/ES/DGA/E29-17R info:eu-repo/grantAgreement/ES/MICINN/RTI2018-096111-B-100 info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 3.4 2022 SPECTROSCOPY 7 / 41 = 0.171 2022 Q1 T1 CHEMISTRY, ANALYTICAL 29 / 86 = 0.337 2022 Q2 T2 0.702 2022 Spectroscopy 2022 Q2 Analytical Chemistry 2022 Q2 6.4 2022 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Bolea, E. Universidad de Zaragoza (orcid)0000-0001-5382-0561 Pérez-Arantegui, J. Universidad de Zaragoza (orcid)0000-0002-4681-3934 Laborda, F. Universidad de Zaragoza (orcid)0000-0002-4169-0357 2009 750 Universidad de Zaragoza Dpto. Química Analítica Área Química Analítica 37, 7 (2022), 1501-1511 J. anal. at. spectrom. Journal of Analytical Atomic Spectrometry 0267-9477 1927256 http://zaguan.unizar.es/record/126330/files/texto_completo.pdf Postprint 795177 http://zaguan.unizar.es/record/126330/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:126330 articulos driver 2024-03-18-16:25:48 ARTICLE