Ultrafiltration
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2008-07-12T11:50:53Z
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[[Image:Ultrafiltration.png|thumb|right|The apparatus of Ultrafiltration in a laboratory]]
'''Ultrafiltration''' ('''UF''') is a variety of [[membrane filtration]] in which hydrostatic pressure forces a liquid against a [[semipermeable membrane]]. Suspended solids and solutes of high molecular weight are retained, while water and low molecular weight solutes pass through the membrane. This [[separation process]] is used in industry and research for purifying and concentrating macromolecular (10<sup>3</sup> - 10<sup>6</sup> [[Atomic_mass_unit|Da]]) solutions, especially protein solutions. Ultrafiltration is not fundamentally different from [[reverse osmosis]], [[microfiltration]] or [[nanofiltration]], except in terms of the size of the molecules it retains.
More specifically, it can refer to:
* [[Ultrafiltration (industrial)]]
* [[Ultrafiltration (renal)]]
* [[Aquapheresis]]
{{disambig}}
[[cs:Ultrafiltrace]]
[[de:Ultrafiltration]]
[[fr:Ultrafiltration]]
[[he:אולטראפילטרציה]]
[[pl:Ultrafiltracja]]
[[pt:Ultrafiltração]]
[[zh-classical:超濾法]]