Analytical apparatus
US4201643A · kind A · utility
1Cited by
9References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 29, 1978 |
| Grant date | May 6, 1980 |
| Priority date | — |
| Expiry date | Mar 29, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2201/46115
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method and apparatus for monitoring low concentrations of certain ions present in a flowing fluid is described in which an isokinetic sample is passed through an electro-separative cell wherein, under the influence of an applied electrical field microgram quantities of the ionic species are quantitatively transferred through a microporous filter membrane. The membrane has a pore size related to cell efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.