Ultra low range sulfite measurement
US11231368B2 · kind B2 · utility
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11Claims
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Key dates
| Filing date | May 29, 2019 |
| Grant date | Jan 25, 2022 |
| Priority date | — |
| Expiry date | Feb 3, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/18
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An embodiment provides a method for measuring sulfite in a solution, including: preparing a hemicyanine indicator; introducing the hemicyanine indicator to a solution containing an amount of sulfite, wherein the hemicyanine indicator reacts with the sulfite and causes a change in fluorescence of the solution; and measuring the amount of sulfite in the solution by measuring an intensity of the fluorescence. Other aspects are described and claimed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.