Method of determining hydrogen cyanide
US3950231A · kind A · utility
5Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 30, 1974 |
| Grant date | Apr 13, 1976 |
| Priority date | — |
| Expiry date | Aug 30, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/4035
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An improved gas-sensing electrochemical cell for measuring hydrogen cyanide gas in a sample solution. The cell comprises a potentiometric silver ion-sensitive electrode and a reference electrode, both in contact with an internal standard solution comprising an aqueous solution of an argento cyanide complex. A hydrophobic hydrogen cyanide gas-permeable membrane separates the sample solution from the internal solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.