System for generating and providing a gaseous phase sample at relatively sequentially constant pressure and flow rate
US5454860A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 4, 1994 |
| Grant date | Oct 3, 1995 |
| Priority date | — |
| Expiry date | Jan 4, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N1/22
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method of use for providing nearly one-hundred (100%) percent of volatile component(s) present in a liquid solution as a gaseous phase volatile component(s) sample to a sample analysis system, at relatively sequentially constant buffered pressure and flow rate, is disclosed. The present invention also provides for quick, immediate and active removal of a remaining liquid solution mixture entered thereto to reduce carry-over contamination. The present invention is particularly well suited for use with flame and plasma based sample analysis systems and its use serves to greatly increase achievable stability of their operation, and sensitivity to volatile component(s) such as, As, Se, Sb, Sn, Hg, B and Te.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.