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Sedimentation field-flow fractionation of colloidal metal hydrosols

✍ Scribed by Larry E. Oppenheimer; Gregory A. Smith

Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
922 KB
Volume
461
Category
Article
ISSN
1873-3778

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✦ Synopsis

Sedimentation field-flow fractionation can be readily used to characterize the particle size distributions in metal hydrosols with particle diameters extending well below 0.01 pm. Processes that change the size distribution, such as particle growth or coagulation, can be investigated by this method. For materials such as silver, where the optical properties of the hydrosol depend on the particle shape, sedimentation field-flow fractionation can be combined with detection by diode array spectrophotometry to obtain data that allow inferences to be made about the non-spherical nature of the dispersed material.

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