Flow cells utilizing photometric techniques
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United States of America Patent
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May 11, 2004
Grant Date -
Sep 18, 2003
app pub date -
Feb 6, 2002
filing date -
Jan 18, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
A flow cell for transporting fluid in a radiant energy field includes a cell structure having a tube extending therethrough including a radiant energy blocking portion integral therewith. In a particular embodiment, the cell structure includes one or more end caps having a protrusion extending therefrom, wherein the protrusion may be inserted into the tube to create a fluid seal, the end caps including open channels for transporting fluid and radiant energy therethrough, and the tube in the cell structure includes an efficient radiant energy transmission lining that is spaced from the end cap protrusions, thereby forming a gap volume in the flow cell open channel, which gap volume may be calibrated such that radiant energy losses may be standardized in respective flow cells transporting fluids having various indexes of refraction.
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