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A set-up for on-line and size-segregated detection of lead in ultrafine aerosols has been developed. Lead nitrate aerosols with particle diameters between 10 and 300 nm are generated by ultrasonic nebulization of aqueous Pb(NO 3 ) 2 solutions. A differential mobility particle sizer (DMPS) is used for size-resolved mass calibration. Either a miniaturized acetylene-air flame or a laser-induced...
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