Method for infrared-optical determination of the concentration of at least one chemical analyte in a liquid sample
US5922609A · kind A · utility
10Cited by
9References
20Claims
0Family size
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Key dates
| Filing date | Nov 6, 1997 |
| Grant date | Jul 13, 1999 |
| Priority date | — |
| Expiry date | Nov 6, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/201666
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a method for infrared-optical determination of the concentration of at least one chemical analyte in a liquid sample, where the liquid sample is passed through a measuring cell and irradiated with infrared radiation of a single narrow waverange and infrared absorption is measured, the analyte being determined is subject to a chemical reaction before measurement, which should leave the other components of the liquid sample unaffected, and the change in infrared absorption caused by the chemical reaction with the analyte is measured as a unique function of the analyte concentration to be determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.