Patent EP0105434A2 successfully refreshed from Google Patents.
EP0105434A2
Expired / Lapsed
EP
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Potentiometric analysis instrument
Assignee: EIDP Inc
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Filing: 1983-09-24
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Granted: —
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Expires: 2003-09-24
Abstract
Abstract A reference electrode system is characterized by a member with a flow passage therein disposed to permit fluid flow between an electrolyte reservoir and a sample channel. The passage in the member is configured to provide a predetermined flow rate that is reproducible from instrument to instrument.
Inventors
- 👤 George Robinson Long
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 03:44
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/28; G01N27/30; G01N27/301
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
89 words
A reference electrode system for a potentiometric analysis instrument comprising: a housing having a reservoir defined therein, the reservoir being adapted to receive an electrolyte therein, the housing having a smooth wall channel adapted to carry a sample liquid therethrough; a reference electrode element disposed within the housing; and a member having a passage formed therein disposed within the housing and arranged to permit fluid communication through the passage between the reservoir and the channel, the passage being dimensioned to permit a fluid flow at a predetermined rate therethrough.
Claim 2
Dependent Claim
89 words
A reference electrode system for a potentiometric analysis instrument comprising: a housing having a reservoir defined therein, the reservoir being adapted to receive an electrolyte therein, the housing having a smooth wall channel adapted to carry a sample liquid therethrough; a reference electrode element disposed within the housing; and a member having a passage formed therein disposed within the housing and arranged to permit fluid communication through the passage between the reservoir and the channel, the passage being dimensioned to permit a fluid flow at a predetermined rate therethrough.
Claim 3
Dependent Claim
37 words
The reference electrode system of claim 1 wherein the member comprises a capillary tube wherein the passage is defined by a uniform smooth bore with a predetermined diameter d extending through the tube for a length L.
Claim 4
Dependent Claim
13 words
The reference electrode system of claim 2 wherein the capillary tube is glass.
Claim 5
Dependent Claim
28 words
The reference electrode system of claims 1, 2 or 3 wherein the member has a smooth land formed about the mouth of the passage at each end thereof.
Claim 6
Dependent Claim
38 words
The reference electrode system of claim 1 wherein the member comprises a bundle of hollow fibers encased in a tube, each fiber having a bore therethrough and wherein the passage is defined by the bores through the fibers.
Claim 7
Dependent Claim
38 words
The reference electrode system of claim 1 wherein the member comprises a bundle of fibers encased in a tube and wherein the passage is defined by open spaces between adjacent fibers and between a fiber and the tube.
Claim 8
Dependent Claim
67 words
In a housing for a reference electrode of the type having an electrolyte reservoir defined therein and a sample flow channel extending therethrough, the improvement which comprises a member having a passage former therein disposed within the housing and arranged to permit fluid communication through the passage between the reservoir and the channel, the passage being dimensioned to permit a fluid flow at a predetermined rate therethrough.
Claim 9
Dependent Claim
67 words
In a housing for a reference electrode of the type having an electrolyte reservoir defined therein and a sample flow channel extending therethrough, the improvement which comprises a member having a passage former therein disposed within the housing and arranged to permit fluid communication through the passage between the reservoir and the channel, the passage being dimensioned to permit a fluid flow at a predetermined rate therethrough.
Claim 10
Dependent Claim
35 words
The housing of claim 7 wherein the member comprises a capillary tube wherein the passage is defined by a uniform smooth bore with a predetermined diameter d extending through the tube for a length L.
Claim 11
Dependent Claim
12 words
The housing of claim 8 wherein the capillary tubing is lead glass.
Claim 12
Dependent Claim
26 words
The housing of claims 7, 8 or 9 wherein the member has a smooth land formed about the mouth of the passage at each end thereof.
Claim 13
Dependent Claim
38 words
' 11. The housing of claim 7 wherein the member comprises a bundle of hollow fibers encased in a tube, each fiber having a bore therethrough and wherein the passage is defined by the bores through the fibers.
Claim 14
Dependent Claim
38 words
The reference electrode system of claim 7 wherein the member comprises a bundle of fibers encased in a tube and wherein the passage is defined by open spaces between adjacent fibers and between a fiber and the tube.
References Cited (Backward Citations)
No citation records indexed.
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