Abstract
Accurate analysis of fly ash particles is not trivial because of complex nature in physical and chemicalproperties. SPLITT fractionation (SF) was employed to fractionate the fly ash particles into subpopulations inlarge quantities. Then the SF-fractions were analyzed by the steric mode of sedimentation field-flowfractionation (Sd/StFFF) for size analysis. The SF-fractions were also analyzed by ICP-OES. The resultsshowed that the fly ash is mainly co mposed of Fe, Ca, Mg and Mn. No particular trends were observed betweenthe particle size and the concentrations of Fe, Ca, Mg, while Mn, Cu and Zn were in higher concentrations insmaller particles. Sample preparation procedures were established, where the fly ash particles were sieved toremove large contaminants, and then washed with acetone to remove organics on the surface of particles. Thesample preparation and analysis methods developed in this study could be applied to other environmentalparticles.
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