Analysis of liquid streams using tubing with protuberances on its inner wall
US4486312A · kind A · utility
19Cited by
5References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 12, 1983 |
| Grant date | Dec 4, 1984 |
| Priority date | — |
| Expiry date | Aug 12, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/965
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The constituents of a liquid stream are analyzed by flowing the stream through a hollow tube or fiber with spaced protuberances of a character to disrupt laminar flow and to produce turbulence. In one embodiment, the tubing includes ion exchange sites and is preferentially permeable to one of the ions of an electrolyte. In this manner, the tubing is useful as an electrolyte suppressor in ion chromatography in which the analyte ions are separated by chromatography using the electrolyte and the electrolyte is converted to weakly ionized form by passage through the tubing prior to conductivity detection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.