Apparatus and method for chemical modulation
US6007602A · kind A · utility
8Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 1998 |
| Grant date | Dec 28, 1999 |
| Priority date | — |
| Expiry date | Jun 12, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/8881
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus and a method are described for forming a chemical modulation of a substance present in a fluid stream, which utilize a movable device, such as a movable heater, to induce changes in the retention of a chemical substance flowing through the modulator tube. The modulator tube has an inlet, a first portion in communication with the inlet, a second portion in communication with said first portion, and an outlet in communication with said second portion. The method involves causing a chemical modulation by moving retention alteration device relative to a modulator tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.