Method for detecting and controlling the amount of cationic species in a water stream
US10544054B2 · kind B2 · utility
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4References
14Claims
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Key dates
| Filing date | Jan 24, 2018 |
| Grant date | Jan 28, 2020 |
| Priority date | — |
| Expiry date | Apr 13, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/8557
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for detecting and controlling the amount of cationic species in a water stream in accordance with embodiments of the present disclosure is carried out by adding a solution containing a pre-determined quantity of a fluorescent tracer to the sample of water stream to obtain a solution comprising a complex. The fluorescence emission spectra of the solution is measured for detecting the presence or absence of the cationic species based on the attenuation and shift of the emission peak in the range of 640 nm to 655 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.