Sample focusing device and method

Details Sample focusing device and method Sample focusing device and method

1998-02-27

2000-08-29

Williams, Hezron

Measuring and testing

Particle size

7386433, 7386321, 210511, 210767, 209210, 209422, 209716, 209156, G01N 118, G01N 1504, B03B 566, B03C 3017, B03D 300

Patent

active

061091197

ABSTRACT:
Sample focusing method and device for field-flow fractionation techniques that lead to improved detection, improved separation resolution, and a compressed sample plug while permitting a more straightforward quantitation of peaks and reliable large volume injections. The method and technique can be implemented in separations that are performed by a variety of field-flow fractionation techniques, including thermal FFF, electrical FFF, sedimentation FFF, gravitational FFF, dielectric FFF, photophoretic FFF, flow FFF, asymmetric flow FFF, and symmetric flow FFF. The sample focusing device can be integrally built into a separation channel or it can be manufactured as an attachable independent piece.

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FFFractionation Brochure--Model S-101.
FFFractionation Brochure--Model T-100.
FFFractionation Leaflets--Basics of the FFF separation, 3 sheets.

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