Permeation pH control system
US4917709A · kind A · utility
3Cited by
20References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 27, 1987 |
| Grant date | Apr 17, 1990 |
| Priority date | — |
| Expiry date | Aug 27, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/965
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A simplified, single component resin bed is coupled with a permeation tube and bottle. The permeation bottle contains an ionic species and a dissolved gas. The apparatus makes unnecessary a multi-component resin ion exchange column for solvent pH control in electrolytic conductivity detection as applied to gas chromatography.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.