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US3839162A Expired / Lapsed US ⏱️ 0.0 years remaining

Method and apparatus for the determination of the concentration of relevant ions in aqueous solutions

Assignee: Individual
•
Filing: 1972-02-01
•
Granted: 1974-10-01
•
Expires: 1992-02-01
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Abstract

Abstract A system for determining the concentration of specific ions in a first aqueous solution wherein a second aqueous solution containing the specific ions is treated in an ion exchanger so that a third aqueous solution having a known concentration of the specific ions emerges therefrom. The first and third aqueous solutions are directed to chambers, respectively, and brought into communication through a diaphragm. A measuring electrode is positioned in the solutions in each chamber and the potential difference between the electrode is measured. In a case where the first aqueous solution is treated in another ion exchanger of the same characteristics as the ion exchanger for the second solution, the potential difference will serve to indicate changes in the behavior of the said another ion exchanger.

Inventors

  • 👤 H Ammer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 22:42
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/416; G01N27/4166

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 130 words
A METHOD FOR THE DETERMINATION OF THE CONCENTRATION OF SPECIFIC IONS IN A FIRST AQUEOUS SOLUTION COMPRISING, DIRECTING THE FIRST AQUEOUS SOLUTION CONTAINING THE SPECIFIC IONS TO A FIRST CHAMBER, DIRECTING A SECOND AQUEOUS SOLUTION HAVING THE SPECIFIC IONS IN THE FIRST SOLUTION TO AN ION EXHCANGER, TREATING THE SECOND SOLUTION IN THE ION EXCHANGER AND EXCHANGING THE SPECIFIC IONS OF THE SECOND SOLUTION SUCH THAT A THIRD AQUEOUS SOLUTION HAVING A KNOWN CONCENTRATION OF THE SPECFIC IONS EMERGES FROM THE ION EXCHANGER, DIRECTING THE THIRD AQUEOUS SOLUTION CONTAINING THE KNOWN CONCENTRATION OFTHE SPECIFIC IONS TO A SECOND CHAMBER, BRINGING THE FIRST THIRD AQUEOUS SOLUTION WITHIN THE FIRST AND SECOND CHAMBERS, RESPECTIVELY, INTO COMMUNICATION THUROGH A DIAPHRAGM, POSITIONING A FIRST MEASURING ELECTRODE SENSITIVE TO THE SPECIFIC IONS IN THE AQUE-
Claim 2
Independent Claim 130 words
A METHOD FOR THE DETERMINATION OF THE CONCENTRATION OF SPECIFIC IONS IN A FIRST AQUEOUS SOLUTION COMPRISING, DIRECTING THE FIRST AQUEOUS SOLUTION CONTAINING THE SPECIFIC IONS TO A FIRST CHAMBER, DIRECTING A SECOND AQUEOUS SOLUTION HAVING THE SPECIFIC IONS IN THE FIRST SOLUTION TO AN ION EXHCANGER, TREATING THE SECOND SOLUTION IN THE ION EXCHANGER AND EXCHANGING THE SPECIFIC IONS OF THE SECOND SOLUTION SUCH THAT A THIRD AQUEOUS SOLUTION HAVING A KNOWN CONCENTRATION OF THE SPECFIC IONS EMERGES FROM THE ION EXCHANGER, DIRECTING THE THIRD AQUEOUS SOLUTION CONTAINING THE KNOWN CONCENTRATION OFTHE SPECIFIC IONS TO A SECOND CHAMBER, BRINGING THE FIRST THIRD AQUEOUS SOLUTION WITHIN THE FIRST AND SECOND CHAMBERS, RESPECTIVELY, INTO COMMUNICATION THUROGH A DIAPHRAGM, POSITIONING A FIRST MEASURING ELECTRODE SENSITIVE TO THE SPECIFIC IONS IN THE AQUE-
Claim 3
Dependent Claim 39 words
The method as recited in claim 1, wherein the first aqueous solution is continuously supplied to the first chamber and the first electrode, and the third aqueous solution is continuously supplied to the second chamber and the second electrode.
Claim 4
Dependent Claim 26 words
The method of claim 3, wherein the first aqueous solution is initially treated in another ion exchanger having the same characteristics as the said ion exchanger.

References Cited (Backward Citations)

NL271717A Cited
US3306837A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-09-30 1978-04-01 1978-10-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-09-30 1982-04-01 1982-10-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-09-30 1986-04-01 1986-10-01 $7700.00 Window Closed / Lapsed

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