Abstract
Methodology for the determination of the chemical composition of sized particulate emissions from sources is described. Emphasis is on the determination of the elemental content with X-ray fluorescence analysis (XRF) the principal analytical technique employed. Devices and procedures developed for the collection of sized particles from stationary sources are presented. Included are a sampler for size classification of submicrometer particles based on diffusion and a special in-stack cascade impactor that was developed to collect samples compatible for XRF analysis. Representative data on the chemical content of sized emission samples collected with these devices at several stationary sources are discussed.
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