Field programming in gravitational field-flow fractionation
1.
SYSNO ASEP
0162368
Druh ASEP
C - Konferenční příspěvek (mezinárodní konf.)
Zařazení RIV
D - Článek ve sborníku
Název
Field programming in gravitational field-flow fractionation
Tvůrce(i)
Chmelík, Josef (UIACH-O) Plocková, Jana (UIACH-O)
Zdroj.dok.
FFF 2002. The Tenth International Symposium on Field-Flow Fractionation. - Amsterdam, 2002
Rozsah stran
s. a-12
Poč.str.
1 s.
Akce
FFF'02. International Symposium on Field-Flow Fractionation /10./
Datum konání
02.07.2002-05.07.2002
Místo konání
Amsterdam
Země
NL - Nizozemsko
Typ akce
WRD
Jazyk dok.
eng - angličtina
Země vyd.
NL - Nizozemsko
Klíč. slova
gravitational field-flow fractionation ; field programming ; hydrodynamic lift forces
Vědní obor RIV
CB - Analytická chemie, separace
CEP
IAA4031805 GA AV ČR - Akademie věd
CEZ
AV0Z4031919 - UIACH-O
Anotace
Although the Earth's gravitational field is constant and relatively weak, there are different ways to implement force field programming in GFFF. Because hydrodynamic lift forces participate in the separation process in focusing (hyperlayer) elution mode, they can control the resulting force field acting on particles via changes of flow-velocity, which can be accomplished or by programmable pump or with channels of non-constant cross-sections. Several flow-rate gradients, three trapezoidal channels and two channels of decreasing height (along the longitudinal axis) are tested as tools for optimization of the separation of a model silica gel particle mixture.** they can control the resulting force field acting on particles via changes of flow-velocity, which can be accomplished or by programmable pump or with channels of non-constant cross-sections. Several flow-rate gradients, three trapezoidal channels anwo channels of decreasing height (along the longitudinal axis) are tested as tools for optimization of the separation of a model silica gel particle mixture.
