Apparatus and process for analysis of gaseous nitrogen trichloride
US4302206A · kind A · utility
6Cited by
1References
15Claims
0Family size
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Key dates
| Filing date | Oct 31, 1980 |
| Grant date | Nov 24, 1981 |
| Priority date | — |
| Expiry date | Oct 31, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/17
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus and process for analyzing the nitrogen trichloride concentration in gases containing it utilizing an ultraviolet light source. Unabsorbed filtered light collected from the sample at a wavelength of about 218 nm is compared with a standard at a wavelength of about 260 nm and the resultant is expressed in terms of nitrogen trichloride concentration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.