Automatic multi-sorbent tube air sampler
US6477906B1 · kind B1 · utility
40Cited by
15References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 29, 2000 |
| Grant date | Nov 12, 2002 |
| Priority date | — |
| Expiry date | Feb 29, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2001/2279
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sampling system for capturing samples of trace elements in ambient air comprises a multi-port valve coupled to a plurality of sorbent tubes. Each tube is connected to the multi-port valve by means of pairs of the valve ports. The multi-port valve is constructed and operated in a predetermined sequence to create a flow path through the multi-port valve. The flow path directs an air sample to only one connected sorbent tube at a given time and for a given time interval.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.