Liquid purification or separation – Processes – Chromatography
Reexamination Certificate
2005-02-15
2005-02-15
Therkorn, Ernest G. (Department: 1723)
Liquid purification or separation
Processes
Chromatography
C210S659000, C210S143000, C210S198200
Reexamination Certificate
active
06855258
ABSTRACT:
Methods and apparatus for characterizing a polymer sample and in preferred embodiments, libraries of polymer samples, in a comprehensive, directly-coupled multi-dimensional liquid chromatography system are disclosed. The first and second dimensions are preferably high-performance liquid chromatography dimensions, such as for example, a first dimension adapted for determining composition (e.g. adapted for mobile-phase gradient elution chromatography, including reverse phase chromatography, adsorption chromatography and the like), and a second dimension adapted for determining molecular weight or particle size (e.g., adapted for size exclusion chromatography, including gel permeation chromatography).
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Carlson Eric D.
Nguyen Son Hoai
Petro Miroslav
Symyx Technologies Inc.
Therkorn Ernest G.
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