Liquid purification or separation – With means to add treating material – Chromatography
Reexamination Certificate
2010-10-28
2011-11-15
Menon, Krishnan S (Department: 1777)
Liquid purification or separation
With means to add treating material
Chromatography
C210S656000, C422S501000
Reexamination Certificate
active
08057668
ABSTRACT:
The invention provides extraction columns for the purification of an analyte (e.g., a biological macromolecule, such as a peptide, protein or nucleic acid) from a sample solution, as well as methods for making and using such columns. The columns typically include a bed of extraction media positioned in the column between two frits. In some embodiments, the extraction columns employ modified pipette tips as column bodies. In some embodiments, the invention provides columns characterized by low backpressure.
REFERENCES:
patent: 7837871 (2010-11-01), Gjerde et al.
Gjerde Douglas T.
Hanna Christopher P.
Kalman Sue S.
Menon Krishnan S
PhyNexus, Inc.
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