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Difference between revisions of "Field-Flow fractionation (FFF)"
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Field-Flow fractionation (FFF) (view source)
Revision as of 15:15, 31 January 2022
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In Split flow thin-cell fractionation (SPLITT) earth's gravitational force is used to separate different sized particles (usually in µm-range). Usually the suspensions are introduced into the top of a separation channel while a carrier liquid is pumped into the channel from the bottom. The separation of different sized solids occurs along the channel induced by earth's gravity. Two outlets (one at the channel bottom, one at the channel top) at the end of the channel separates the particles into a larger and smaller fraction while the cut-off can be controllel via the channel flows. | In Split flow thin-cell fractionation (SPLITT) earth's gravitational force is used to separate different sized particles (usually in µm-range). Usually the suspensions are introduced into the top of a separation channel while a carrier liquid is pumped into the channel from the bottom. The separation of different sized solids occurs along the channel induced by earth's gravity. Two outlets (one at the channel bottom, one at the channel top) at the end of the channel separates the particles into a larger and smaller fraction while the cut-off can be controllel via the channel flows. | ||
=== Thermal FFF === | === Thermal FFF (TF3) === | ||
In Thermal FFF the separation force is established by applying a temperature gradient. the top wall of a Thermal FFF channel is heated up, while the bottom wall of the channel is cooled down. The higher the temperature difference between both plates of the separation channel, the higher is the separation force. In order to achieve optimum separation, the temperature difference across the elution time can be adjusted. TF3 is well suited to the fractionation of polymers. | |||
==Products== | ==Products== | ||
No products have been identified. | |||
=== Post-treatment === | === Post-treatment === | ||
Currently no post-treatment has been identified. | |||
==Technology providers== | ==Technology providers== | ||