Particulates, nanometer-sized colloidal

It is important to state the difference between particles and particulate films at the onset of this section. Particles are separate nanometer- to micron-sized colloids dispersed in solution. Physically interconnected colloidal metal particles constitute a particulate film which may be supported by a monolayer floating on an aqueous subphase or be deposited on a solid substrate. 

FFF can be used for the separation of a very broad size range (from sub-nanometers to millimeters) of analytes. The nature of the analyte, the dimensional range, and the nature of the solvent or dispersed medium are important factors in choosing the FFF technique. Concerning the analyte nature, it can be a dissolved macromolecule, a suspended colloid, or a particulate sample of... 

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