Flow cell
First Claim
1. An improved ion selective electrode flow cell comprising:
- a first fluid conduit;
at least two ion sensing electrodes each having an ion sensing surface disposed within the first fluid conduit;
a second fluid conduit;
an ion sensing electrode having an ion sensing surface disposed within the second conduit;
an electrically conducting bridge connecting the first and second fluid conduits; and
a conductive member other than electrodes, having at least portions thereof disposed in the first fluid conduit proximate the ion sensing surfaces of the at least two ion sensing electrodes and the bridge.
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Accused Products
Abstract
An ion selective electrode flow cell includes a first fluid conduit and at least two ion sensing electrodes each having ion sensing surfaces disposed within the first fluid conduit. A second fluid conduit and an ion sensing electrode having an ion sensing tip is disposed within the second conduit. There is an electrically conducting bridge connecting the first and second fluid conduits. A conductive member is disposed within the first fluid conduit proximate the ion sensing surfaces of two ion sensing electrodes and the bridge. A third fluid conduit may intersect the first fluid conduit and can include grounding for grounding fluid flowing through the third fluid conduit. Capacitors between exit and entry ports of the first and second fluid conduits and ground reduce electrical noise within the flow cell.
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Citations
17 Claims
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1. An improved ion selective electrode flow cell comprising:
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a first fluid conduit; at least two ion sensing electrodes each having an ion sensing surface disposed within the first fluid conduit; a second fluid conduit; an ion sensing electrode having an ion sensing surface disposed within the second conduit; an electrically conducting bridge connecting the first and second fluid conduits; and a conductive member other than electrodes, having at least portions thereof disposed in the first fluid conduit proximate the ion sensing surfaces of the at least two ion sensing electrodes and the bridge. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An improved ion selective electrode flow cell comprising:
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a flow cell body; a first fluid conduit formed in the flow cell body; at least two ion sensing electrodes each having an ion sensing surface disposed within the first fluid conduit; a second fluid conduit formed in the flow cell body; a compensating ion sensing electrode having an ion sensing surface disposed within the second conduit; an electrically conducting bridge connecting the first and second fluid conduits; and a conductive member, other than the electrodes, disposed within the first fluid conduit and extending within the first fluid conduit along a path proximate the ion sensing surface of the at least two ion sensing electrodes and the bridge. - View Dependent Claims (10)
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11. An improved ion selective electrode flow cell comprising:
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a flow cell body; a first fluid conduit formed in the flow cell body; at least two ion sensing electrodes each having an ion sensing surface disposed within the first fluid conduit; a second fluid conduit formed in the flow cell body; a compensating ion sensing electrode having an ion sensing surface disposed within the second conduit; an electrically conducting bridge connecting the first and second fluid conduits; a conductive member, other than electrodes, disposed within the first fluid conduit and extending within the first fluid conduit along a path proximate the ion sensing surface of the at least two ion sensing electrodes and the bridge; a third fluid conduit formed in the flow cell body and intersecting the first fluid conduit proximate the conductive member; and grounding means for grounding the third fluid conduit.
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12. An improved ion selective electrode flow cell comprising:
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a first fluid conduit; at least two ion sensing electrodes each having an ion sensing surface disposed within the first fluid conduit; a second fluid conduit without grounding means for fluid flowing through the second fluid conduit; an ion sensing electrode having an ion sensing surface disposed within the second conduit; a conductive member, other than the electrodes, having at least portions thereof disposed in the first fluid conduit proximate to the ion sensing surfaces of the at least two ion sensing electrodes and the bridge; a third fluid conduit intersecting the first fluid conduit; and grounding means for grounding fluid flowing through the third fluid conduit. - View Dependent Claims (13, 14, 15, 16, 17)
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Specification