Apparatus for measuring water hardness using ion selective electrode
US11953487B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Jun 15, 2022 |
| Grant date | Apr 9, 2024 |
| Priority date | — |
| Expiry date | Jul 21, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2303/16
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for determining total hardness in a fluid stream utilizing a first and second sodium ion selective electrode (ISE). The ion selective electrodes are in electrical communication with one another, having first and second reference electrodes, respectively, with a salt bridge therebetween, where the first ISE receives hard water and the second ISE receives soft water. A least one drain receives outflow from effluent fluid from the first and second sodium ISE sensors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.