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Low-weight electrostatic sampler for airborne nanoparticles

: Merzsch, S.; Wasisto, H.S.; Waag, A.; Kirsch, I.; Uhde, E.; Salthammer, T.; Peiner, E.


Institute of Electrical and Electronics Engineers -IEEE-:
IEEE Sensors 2011. Proceedings. Vol.2 : Limerick, Ireland, 28 - 31 October 2011
Piscataway/NJ: IEEE, 2011
ISBN: 978-1-4244-9290-9
ISBN: 978-1-4244-9288-6
ISBN: 978-1-4244-9289-3
Conference on Sensors <10, 2011, Limerick>
Fraunhofer WKI ()

This paper presents a novel sampler for airborne nanoparticles (NPs). A synthetic aerosol is forced through a tiny tube containing a self-sensing cantilever for attached NPs mass determination. The sampler is miniaturized (tube mass = 39 g, volume = 18.85 cm³) to assure its applicability for personal NPs exposure monitoring Using the first prototype of the sampler an added mass 2.69 ± 0.02 ng was measured under typical test conditions, i.e. airborne carbon NPs of a concentration of 5941 ± 145 NPs/cm3 during a period of 15 min.