Electrochemical cell with improved flowing liquid junction
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United States of America Patent
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Issued Date -
Dec 14, 2006
app pub date -
Jun 8, 2006
filing date -
Jun 9, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An electrochemical cell includes a measuring electrode and a reference electrode. The reference electrode includes a flowing liquid junction between a reference fill fluid and a sample. The flowing liquid junction is configured to inhibit particles from blocking or obstructing it. In one aspect a particle filter is provided before the flowing liquid junction to prevent particles from the fill fluid from entering the flowing liquid junction. In another aspect a particle filter is provided after the flowing liquid junction to prevent particles in the sample from entering the flowing liquid junction. In another aspect the flowing liquid junction has a diameter that generally increases from an aperture proximate the fill fluid to an aperture proximate the sample. On example of such a configuration is a tapered flowing liquid junction.
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