Material compositions for sensors for determination of chemical species at trace concentrations
US8647883B2 · kind B2 · utility
0Cited by
10References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2010 |
| Grant date | Feb 11, 2014 |
| Priority date | — |
| Expiry date | Feb 18, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S436/805
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of quantitatively measuring the concentration of a chemical species in a sample solution with a sensor film. A hydrogel sensor film is prepared having a chemical composition comprising an indicator that changes its optical property in the ultra-violet, visible or near-infrared spectral range upon being exposed to the chemical species in the sample solution. The film is exposed to a fixed amount of the sample solution. The concentration of the chemical species in the sample solution is quantified using the average absorbance measured from the sensor film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.