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1. (WO2017017183) DEVICE FOR COLLECTING PARTICLES CONTAINED IN AN AEROSOL, COMPRISING ELECTROMETRES TO DETERMINE NANOPARTICLE CONCENTRATION AND PARTICLE SIZE

Pub. No.:    WO/2017/017183    International Application No.:    PCT/EP2016/068000
Publication Date: Fri Feb 03 00:59:59 CET 2017 International Filing Date: Fri Jul 29 01:59:59 CEST 2016
IPC: B03C 3/017
B03C 3/09
B03C 3/12
B03C 3/36
B03C 3/41
B03C 3/47
Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
Inventors: CLAVAGUERA, Simon
POURPRIX, Michel
RENOT, Quentin
Title: DEVICE FOR COLLECTING PARTICLES CONTAINED IN AN AEROSOL, COMPRISING ELECTROMETRES TO DETERMINE NANOPARTICLE CONCENTRATION AND PARTICLE SIZE
Abstract:
The invention relates to a method and device for collecting nanoparticles which may be present in an aerosol. The invention consists of electrostatically collecting nanoparticles contained in an aerosol by a mechanism of particle charging by unipolar ion diffusion, followed by the application of a field without a corona effect, which makes it possible to deposit the particles in concentric rings on different parts of a single flat substrate oriented orthogonally to the aerosol circulation direction. The biggest particles are deposited towards the centre of the flat substrate and the finest particles towards the periphery of the flat substrate. The invention also relates to a method of operation and to the use of such a device for evaluating the exposure of workers or consumers to nanoparticles.