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Thierry Guérin
Thierry Guérin
Anses, Food Safety Laboratory–Maisons-Alfort, Chemical Food Contaminants Department, Metallic Trace Elements and Minerals Unit,
14, rue Pierre et Marie Curie, F-94706 Maisons-Alfort
England
Publications
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Research Article
Determination of Ti from TiO2 Nanoparticles in Biological Materials by Different ICP-MS Instruments: Method Validation and Applications
Author(s): Yacine Nia, Sandrine Millour, Laurent Noël, Petra Krystek, Wim de Jong and Thierry Guérin Yacine Nia, Sandrine Millour, Laurent Noël, Petra Krystek, Wim de Jong and Thierry Guérin
The accurate determination of nanoparticles (NPs) content in biological samples is of great interest for studying its potential impacts on health. This paper describes a method validation process for Ti determination from TiO2 NPs in biological matrixes using a closed-vessel microwave digestion with a mixture of 3 mL of HNO3 and 0.4 mL of HF and a detection by quadrupole inductively coupled plasma-mass spectrometry (Q-ICP-MS), in both standard and collision/ reaction cell (CCT) modes. As no suitable certified reference materials are available, several internal reference materials (IRMs) were prepared precisely and they were used for the optimisation and the analytical quality assurance of the method. Several criteria such as linearity, limits of quantification (LOQ), precision under repeatability conditions and intermediate preci.. View More»
DOI: 10.4172/2157-7439.1000269