Liquid purification or separation – With means to add treating material – Chromatography
Reexamination Certificate
2006-12-05
2006-12-05
Therkorn, Ernest G. (Department: 1723)
Liquid purification or separation
With means to add treating material
Chromatography
C210S656000, C210S659000, C210S101000
Reexamination Certificate
active
07144502
ABSTRACT:
In accordance with one aspect of the present invention, an ultra-high pressure chromatography system (UHPLC) is provided and includes a high pressure chromatography arrangement of equipment (HPLC system) as well as a UHPLC module for converting the HPLC system into the UHPLC system. One exemplary module includes a gradient storage column fluidly connected to the HPLC equipment in a post injector manner such that an injection plug can be selectively delivered and stored, in an inverted manner, therein at low pressures, while stored injection plug (gradient) is delivered to an analytical column using higher pressures for chromatographic separation.
REFERENCES:
patent: 5071547 (1991-12-01), Cazer et al.
patent: 6299767 (2001-10-01), Dourdeville
patent: 6613224 (2003-09-01), Strand
patent: 2002/0017484 (2002-02-01), Dourdeville
patent: 2003/0118459 (2003-06-01), Gerhardt et al.
Cappiello, Achille et al., Variable-Gradient Generator for Micro-and Nano-HPLC, Anal. Chem. 2003, pp. 1173-1179.
Xiang, Yanqiao et al., Elevated-temperature ultrahigh liquid chromatography using very small polybutadiene-coated nonporous zirconia particles, Journal of Chromotography A, 2003.
Wu, Naijun et al., Practical aspects of ultrahigh pressure capillary liquid chromatography, Journal of Chromatography A, 2001.
MacNair John E. et al., Ultrahigh-Pressure Reversed-Phase Capillary Liquid Chromatography: Isocratic and Gradient Elution Using Columns Packed with 1.0-μm Particles, Anal Chem, 1999.
MacNair, John E. et al., Ultrahigh-Pressure Reversed-Phase Liquid Chromatography in Packed Capillary Columns, Anal. Chem., 1997.
Cintron, Jose M. et al, Organo-silica nano-particles used in ultrahigh-pressure liquid chromatography, The Analysist 2002.
Fermier Adam
Swinney Kelly
Darby & Darby
Johnson & Johnson
Therkorn Ernest G.
LandOfFree
Chromatography system with gradient storage and method for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Chromatography system with gradient storage and method for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chromatography system with gradient storage and method for... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3693540