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Publikováno v:
Analytical Chemistry, 66. American Chemical Society
The effects of the temperature drop, channel thickness, solvent choice, and molecular mass and chemical nature of the polymer species on the separation speed in thermal field flow fractionation are investigated. The trends observed in the experiments
Publikováno v:
Analytical Chemistry, 66. American Chemical Society
In this study, a general framework is set up for a theoretical comparison of the capabilities of various methods for the separation of polymers according to molecular mass. The resolving power and separation speed of thermal field-flow fractionation
Publikováno v:
Journal of Chromatography A. 657:283-303
Hydrodynamic chromatography (HDC) of linear random coil polymers in columns packed with 1.5-μm non-porous particles was investigated. For polymers with high molecular masses (104-107), the resolution appears to be almost independent of the eluent ve
Publikováno v:
Journal of Chromatography A. 634:149-159
Zone broadening of dissolved polystyrenes in packed-column hydrodynamic chromatography (HDC) was studied for a column filled with 1.5-μm monodisperse non-porous particles. The reduced plate heights were observed to be almost constant with mobile pha
Publikováno v:
Journal of Chromatography A. 559:163-181
The evaluation of arrangements for UV measurements in fused-silica capillaries as applied in, e.g., high-performance capillary electrophoresis, capillary liquid chromatography and hydrodynamic chromatography is described. The various designs are char
Publikováno v:
Journal of Chromatography A. 506:547-561
Non-porous silica spheres with sizes in the range 1.4–2.7 μm were applied as packings for the hydrodynamic chromatography (HDC) of macromolecules. Highly efficient columns, with a reduced plate height below 2, were packed with these small particle
Publikováno v:
1994 Conference on Lasers and Electro-Optics Europe.
Cascading has been recently proposed1 and demonstrated in KTP-based structures as a means to achieve significant optically induced phase shifts because of coupled second-harmonic and down-conversion processes in a mismatched configuration. In view of
Publikováno v:
Nonlinear Optics: Materials, Fundamentals, and Applications.
The cascading of second order nonlinearities (χ(2): χ(2) to induce a nonlinear phase distortion on the input beam has recently received considerable attention[1,2] We estimate that materials with large second order nonlinearities (≃102 pm/V) will