0162308 - UIACH-O 20010059 RIV US eng C - Conference Paper (international conference)
Chmelík, Josef - Plocková, Jana - Matulík, František
Hydrodynamic lift force programming in gravitational field-flow fractionation: a tool for fast and efficient separation of particles.
FFF-2001. Ninth International Symposium on Field-Flow Fractionation. Colorado: Departnment of Chemistry and Geochemistry, Colorado School of Mines, 2001, s. P15.
[International Symposium on Field-Flow Fractionation /9./. Colorado (US), 26.06.2001-29.06.2001]
R&D Projects: GA AV ČR IAA4031805
Institutional research plan: CEZ:AV0Z4031919
Keywords : hydrodynamic force * field-flow fractionation
Subject RIV: CB - Analytical Chemistry, Separation

Force field programming in gravitational field-flow fractionation based on modulation of hydrodynamic lift forces has been introduced. The flow-rate control of activity of hydrodynamic lift forces has been accomplished by either programmable pump or non-constant cross-section of the fractionation channel. Several flow-rate gradients induced by programmed pumping (step gradients, linear gradients, parabolic, and combined ones) or by the changing profile of the fractionation channel (channels with non-constant height or width) have been used for separation of a model mixture of silica gel particles.
Permanent Link: http://hdl.handle.net/11104/0059626