Difference between revisions of "Field-Flow fractionation (FFF)"

|Name=Field-Flow fractionation|Category=Separation technologies}}

|Name=Field-Flow fractionation|Category=Separation technologies}}

<onlyinclude>'''Field-Flow Fractionation (FFF)''' is a family of high resolution separation techniques especially applicable to macromolecules colloids and particles, and shares the most common likeness with liquid [[chromatography]] (LC). The mechanism for separation, however, does not involve interactions with a stationary phase used in LC methods. Instead, a field is applied normal to a laminar flow through a narrow channel, which results in a parabolic flow profile, separating different analytes into distinct regions of the velocity profile. The analytes can be fractionated according to their physicochemical properties such as charge, chemical composition, density, molar mass, and size. Beside analytical purposes, the FFF can also be utilised for preparative purposes.

<onlyinclude>'''Field-Flow Fractionation (FFF)''' is a family of high resolution separation techniques especially applicable to macromolecules colloids and particles, and shares the most common likeness with liquid [[chromatography]] (LC). The mechanism for separation, however, does not involve interactions with a stationary phase used in LC methods. Instead, a field is applied normal to a laminar flow through a narrow channel, which results in a parabolic flow profile, separating different analytes into distinct regions of the velocity profile. The analytes can be fractionated according to their physicochemical properties such as charge, chemical composition, density, molar mass, and size. Beside analytical purposes, the FFF can also be utilised for preparative purposes.

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