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123. Characterization of Diesel Soot by Sedimentation Field Flow Fractionation

Author

Kirkland, J.J., Liebald, W., and Unger, K.K.

Abstract

Diesel exhaust soot samples are examined with sedimentation field flow fractionation (SdFFF), a relatively new separations method for submicron particulates. These studies show that the density of the diesel soot samples is relatively inhomogeneous, ranging from 1.17 to 1.34 g/cm3 for all samples, based on weight average particle diameter values. While diesel soot particle ultimates are in the 0.05–0.15-μm range, weight average particle diameters of about 0.2–0.3 μm are estimated by SdFFF, suggesting that many of the soot particulates are relatively strong aggregates. These studies indicate that SdFFF is a useful tool for characterizing a wide range of submicron, environmentally important particulates.

Published
1990
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124. Preface

Author

Rouquerol, J., Rodriguez-Reinoso, F., Sing, K.S.W., and Unger, K.K.

Published
1994
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