Liquid chromatographic method and system
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United States of America Patent
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Aug 19, 2008
Grant Date -
Apr 26, 2007
app pub date -
Nov 29, 2006
filing date -
Feb 27, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
To form a smooth gradient and a preparatory liquid chromatographic system having a plurality of syringe type pumps, solvents are alternately drawn and inserted into each cylinder. The solvents are alternately drawn into and through a long narrow path formed of tubing to create axial mixing and spreading out of the interface and then are drawn into the cylinders during the refill stroke of the piston at a sufficiently high velocity to create turbulence. The drawing of the solvents into one side of the cylinder a radial distance from the center creates circular eddy currents.
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