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Laser excited atomic fluorescence (LEAF) with a flame and a laser plasma as atomization sources was studied for the on-line and in-situ determination of lead in ultrafine aerosols. Use of a differential mobility particle sizer (DMPS) system offered the possibility of calibrating the system with nearly monodisperse, iso-mobility aerosols and therefore studying diameter-dependent effects. Although atomic fluorescence is inherently a single-element detection technique, this method exhibits a large potential for the elemental on-line and in-situ characterization of ultrafine aerosols because of the low detection limits. A further improvement of the detection limits could be eventually achieved by aerodynamic focusing of the particles resulting in an on-line preconcentration of the particles,

Additional information

Authors: NEUHAUSER R E, Technische Universität München (DE);PANNE U, Technische Universität München (DE);NIESSNER R, Technische Universität München (DE);PETRUCCI G A, JRC Ispra (IT);CAVALLI P, JRC Ispra (IT);OMENETTO N, JRC Ispra (IT)
Bibliographic Reference: Article: Analitica Chimica Acta (1996)
Record Number: 199611401 / Last updated on: 1996-12-18
Original language: en
Available languages: en