|
===Single particle ICP-MS===
Single particle-induced coupled plasma-mass spectroscopy (SP-ICP-MS) is used in several areas where there is the possibility of detecting and quantifying suspended particles in samples of environmental fluids, assessing their migration, assessing the size of particles and their distribution, and also determining their stability in a given environment. SP-ICP-MS was designed for particle suspensions in 2000 by Claude Degueldre. He first tested this new methodology at the Forel Institute of the University of Geneva and presented this new analytical approach at the 'Colloid 2oo2' symposium during the spring 2002 meeting of the EMRS, and in the proceedings in 2003.<ref>C. Degueldre & P. -Y. Favarger, « Colloid analysis by single particle inductively coupled plasma-mass spectroscopy: a feasibility study », Colloids and Surfaces A: Physicochemical and Engineering Aspects, symposium C of the E-MRS 2002 Spring Meeting in Strasbourg, France, vol. 217, no 1, 28 avril 2003, p. 137–142 (ISSN 0927-7757, DOI 10.1016/S0927-7757(02)00568-X)</ref>. This study presents the theory of SP ICP-MS and the results of tests carried out on clay particles (montmorillonite) as well as other suspensions of colloids. This method was then tested on thorium dioxide nanoparticles by Degueldre & Favarger (2004),<ref>C Degueldre et P. -Y Favarger, « Thorium colloid analysis by single particle inductively coupled plasma-mass spectrometry », Talanta, vol. 62, no 5, 19 avril 2004, p. 1051–1054 (ISSN 0039-9140, DOI 10.1016/j.talanta.2003.10.016</ref> zirconium dioxide by Degueldre et al (2004)<ref>C. Degueldre, P. -Y. Favarger et C. Bitea, « Zirconia colloid analysis by single particle inductively coupled plasma–mass spectrometry », Analytica Chimica Acta, vol. 518, no 1, 2 août 2004, p. 137–142 (ISSN 0003-2670, DOI 10.1016/j.aca.2004.04.015) </ref> and gold nanoparticles, which are used as a substrate in nanopharmacy, and published by Degueldre et al (2006).<ref>C. Degueldre, P. -Y. Favarger et S. Wold, « Gold colloid analysis by inductively coupled plasma-mass spectrometry in a single particle mode », Analytica Chimica Acta, vol. 555, no 2, 12 janvier 2006, p. 263–268 (ISSN 0003-2670, DOI 10.1016/j.aca.2005.09.021) </ref> Subsequently, the study of uranium dioxide nano- and micro-particles gave rise to a detailed publication, Ref. Degueldre et al (2006).<ref>C. Degueldre, P. -Y. Favarger, R. Rossé et S. Wold, « Uranium colloid analysis by single particle inductively coupled plasma-mass spectrometry », Talanta, vol. 68, no 3, 15 janvier 2006, p. 623–628 (ISSN 0039-9140, DOI 10.1016/j.talanta.2005.05.006, </ref> Since 2010 the interest for SP ICP-MS has exploded.
==Examples==
|
