Results 241 to 250 of about 123,855 (295)
Some of the next articles are maybe not open access.
Analytical Chemistry, 1988
Field-flow fractionation (FFF) is a family of high resolution separation techniques especially applicable to macromolecules, colloids and particles.1–11 The FFF family consists of a number of highly flexible chromatography-like elution techniques that can be adapted to nearly any kind of macromolecular/colloidal separation and characterization problem.
openaire +2 more sources
Field-flow fractionation (FFF) is a family of high resolution separation techniques especially applicable to macromolecules, colloids and particles.1–11 The FFF family consists of a number of highly flexible chromatography-like elution techniques that can be adapted to nearly any kind of macromolecular/colloidal separation and characterization problem.
openaire +2 more sources
Separation Science and Technology, 1976
Abstract Field-flow fractionation (FFF) is a separation method first described in 1966 (I). FFF is an elution technique, like chromatography, and the experimental sequence of pump, column, detector, and fraction collector is much like that used in chromatographic operations (2-4).
openaire +1 more source
Abstract Field-flow fractionation (FFF) is a separation method first described in 1966 (I). FFF is an elution technique, like chromatography, and the experimental sequence of pump, column, detector, and fraction collector is much like that used in chromatographic operations (2-4).
openaire +1 more source
TrAC Trends in Analytical Chemistry, 1994
Field-flow fractionation (FFF) is a family of instrumental techniques that separates and characterizes macromolecules, colloids, and particles (macromaterials) on an analytical scale (Colfen and Antonietti, 2000; Schimpf et al., 2000). As illustrated in Fig. 1, the FFF channel has a ribbon-shaped geometry, typically with length 30-50 cm, breadth 1-3 cm,
openaire +1 more source
Field-flow fractionation (FFF) is a family of instrumental techniques that separates and characterizes macromolecules, colloids, and particles (macromaterials) on an analytical scale (Colfen and Antonietti, 2000; Schimpf et al., 2000). As illustrated in Fig. 1, the FFF channel has a ribbon-shaped geometry, typically with length 30-50 cm, breadth 1-3 cm,
openaire +1 more source
Cyclical electrical field flow fractionation
ELECTROPHORESIS, 2005AbstractCyclical electrical field flow fractionation (Cy/ElFFF) is demonstrated in a standard electrical field flow fractionation (ElFFF) channel for the first time. Motivation for the use of alternating current (AC) fields in a traditionally direct current (DC) technique are discussed.
Bruce K, Gale, Merugu, Srinivas
openaire +2 more sources
Field-flow fractionation and biotechnology
Trends in Biotechnology, 2005The gentle separation mechanism has made field-flow fractionation particularly suited to samples of biotechnological interest, from proteins and nucleic acids to viruses, subcellular units and whole cells. Recent progress in field-flow fractionation technology, as well as the development of coupled techniques combining field-flow fractionation ...
RESCHIGLIAN, PIERLUIGI +4 more
openaire +2 more sources
Sedimentation Field Flow Fractionation: Applications
Science, 1982Sedimentation field flow fractionation is a powerful, new, high-resolution separation method for a wide variety of colloids, micelles, particulates, and soluble macromolecules of biological interest. Advances in instrumentation allow sedimentation field flow fractionation operation with rotor speeds up to 32,000 revolutions per minute (∼85,
J J, Kirkland, W W, Yau
openaire +2 more sources
Tandem hollow-fiber flow field-flow fractionation
Journal of Chromatography A, 2011Reinjection of one ore more collected fractions of eluted samples is recognized as a useful procedure in analytical separation techniques, among which field-flow fractionation (FFF), to improve the actual separation of complex samples. Hollow-fiber flow FFF (HF5) is a micro-channel subset of flow FFF (F4), which has recently reached a performance ...
ZATTONI, ANDREA +4 more
openaire +3 more sources
Flow field-flow fractionation: Critical overview
Journal of Chromatography A, 2013This overview regards some critical issues in performing flow field-flow fractionation (flow FFF, FlFFF, AF4, HF-FlFFF, HF5). It includes the channel thickness, void time, channel-flow parabolic profile, channel-flow velocity gradient, uniformity of the cross-flow, sample injection time, relaxation/focusing time, width of sample starting zone ...
openaire +2 more sources
Micro-Thermal Field-Flow Fractionation
Collection of Czechoslovak Chemical Communications, 2002The effect of miniaturization of the separation channel on the performance of thermal field-flow fractionation (TFFF) is substantiated theoretically. The experiments carried out under carefully chosen experimental conditions proved the high performance of the separation of polymers within an extended range of molar masses from relatively low up to ...
openaire +1 more source