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Online characterization of nano-aerosols released by commercial spray products using SMPS-ICPMS coupling

Losert, Sabrina ; Hess, Adrian ; Ilari, Gabriele ; von Goetz, Natalie ; Hungerbuehler, Konrad

In: Journal of Nanoparticle Research, 2015, vol. 17, no. 7, p. 1-14

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    Titre
    • Online characterization of nano-aerosols released by commercial spray products using SMPS-ICPMS coupling
    Auteur
    • Losert, Sabrina. Laboratory for Analytical Chemistry, Empa Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600, Dübendorf, Switzerland
    • Hess, Adrian. Laboratory for Analytical Chemistry, Empa Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600, Dübendorf, Switzerland
    • Ilari, Gabriele. Electron Microscopy Center, Empa Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600, Dübendorf, Switzerland
    • von Goetz, Natalie. Institute for Chemical and Bioengineering, ETH Zürich Swiss Federal Institute of Technology Zürich, Vladimir-Prelog-Weg 1, 8093, Zürich, Switzerland
    • Hungerbuehler, Konrad. Institute for Chemical and Bioengineering, ETH Zürich Swiss Federal Institute of Technology Zürich, Vladimir-Prelog-Weg 1, 8093, Zürich, Switzerland
    Type de document
    • Postprint
    Langue
    • Inglese
    Publié dans
    • Journal of Nanoparticle Research, 2015, vol. 17, no. 7, p. 1-14. Springer Netherlands
    Autre version électronique
    Identifiant OAI-PMH
    • oai:doc.rero.ch:333061
    Summary
    Nanoparticle-containing sprays are a critical class of consumer products, since human exposure may occur by inhalation of nanoparticles (NP) in the generated aerosols. In this work, the suspension and the released aerosol of six different commercially available consumer spray products were analyzed. Next to a broad spectrum of analytical methods for the characterization of the suspension, a standardized setup for the analysis of aerosol has been used. In addition, a new online coupling technique (SMPS-ICPMS) for the simultaneous analysis of particle size and elemental composition of aerosol particles has been applied. Results obtained with this new method were confirmed by other well-established techniques. Comparison of particles in the original suspensions and in the generated aerosol showed that during spraying single particles of size less than 20nm had been formed, even though in none of the suspensions particles of size less than 280nm were present (Aerosol size range scanned: 7-300nm). Both pump sprays and propellant gas sprays were analyzed and both released particles in the nm size range. Also, both water-based and organic solvent-based sprays released NP. However, a trend was observed that spraying an aqueous suspension contained in a pump spray dispenser after drying resulted in bigger agglomerates than spraying organic suspensions in propellant gas dispensers. Graphical Abstract: