Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
David J. Rakestraw0
David W. Neyer0
Jason E. Rehm0
Date of Patent
January 12, 2010
0Patent Application Number
105579240
Date Filed
May 19, 2004
0Patent Primary Examiner
Patent abstract
A liquid sample is prepared at a preparation site and then processed, e.g. in an HPLC column. The sample is prepared and conveyed to the device at a flow rate which is substantially less than the flow rate through the device. The different flow rates are preferably provided by variable rate working fluid supplies which drive the sample from the preparation site and through the device.
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