Measuring and testing – Liquid analysis or analysis of the suspension of solids in a... – Content or effect of a constituent of a liquid mixture
Reexamination Certificate
2011-03-15
2011-03-15
Williams, Hezron (Department: 2856)
Measuring and testing
Liquid analysis or analysis of the suspension of solids in a...
Content or effect of a constituent of a liquid mixture
Reexamination Certificate
active
07905133
ABSTRACT:
A splitter for a pressurized primary flowstream of a mobile phase is provided. The splitter comprises a first splitting stage that divides the primary flowstream between a major split flowstream and a minor split flowstream by means of a first and a second restrictive flow element; a first dilution stage that combines a dilution flow source with the minor split flowstream to create a diluted minor flowstream; a second splitting stage that divides the diluted minor flowstream between a secondary major diluted flowstream and a secondary minor diluted flowstream by means of a third restrictive element in the secondary minor diluted flow stream; and a second dilution stage wherein a conditioning flow source conditions the secondary minor diluted flow stream after the third restrictive element prior to outlet of the secondary minor diluted flowstream from the splitter.
REFERENCES:
patent: 5108466 (1992-04-01), Klein et al.
patent: 6106710 (2000-08-01), Fischer et al.
patent: 6289914 (2001-09-01), Tommasi
patent: 6296020 (2001-10-01), McNeely et al.
patent: 6402946 (2002-06-01), Spraul et al.
patent: 6406633 (2002-06-01), Fischer et al.
patent: 6413428 (2002-07-01), Berger et al.
patent: 6413431 (2002-07-01), Abedi
patent: 6458273 (2002-10-01), Krakover et al.
patent: 6601613 (2003-08-01), McNeely et al.
patent: 6767467 (2004-07-01), Fischer et al.
patent: 6817554 (2004-11-01), Gangl et al.
patent: 6880576 (2005-04-01), Karp et al.
patent: 6890489 (2005-05-01), Nichols et al.
patent: 6908557 (2005-06-01), Chordia et al.
patent: 6911092 (2005-06-01), Sneh
patent: 6997031 (2006-02-01), Gilby et al.
patent: 7086279 (2006-08-01), Gilby et al.
patent: 7635502 (2009-12-01), Sneh
patent: 2002/0121468 (2002-09-01), Fischer et al.
patent: 2006/0078986 (2006-04-01), Ly et al.
patent: 2007/0263477 (2007-11-01), Sudarsan et al.
patent: 0544988 (1993-06-01), None
Pinkston, Advantages and drawbacks of popular supercritical fluid chromatography/mass spectrometry interfacing approaches—a user's perspective, Mar. 31, 2005, Eur, J. Mass Spectrom, vol. 11, pp. 189-197, Mason, OH.
Xiang, et al., A New Reference Correclation for the Viscosity of Methanol, Nov. 8, 2006, J. Phys. Chem. Ref. Data, vol. 35, No. 4, 2006, pp. 1597-1620, Boulder, CO.
QuickSplit Flow Splitters, catalog, http://www.hplc-asi.com, available Dec. 3, 2003 in PDF format from the website.
Cai, et al., A straightforward means of coupling preparative high-performance liquid chromatography and mass spectrometry, Rapid Commun. Mass Spectrom, 2002; 16: 544-554.
Zhang, et al., A systematic investigation of recovery in preparative reverse phase high performance liquid chromatography/mass spectrometry, Journal of Chromatography A. 1119, (2006)147-155.
Chordia Lalit
Fogelman Kimber D.
Waters James L.
Wickfors Edwin E.
Anderson Debra Z.
Frank Rodney T
Thar Instruments, Inc.
Williams Hezron
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