Auto-sampler cleaning mechanism
US7980119B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2007 |
| Grant date | Jul 19, 2011 |
| Priority date | — |
| Expiry date | Nov 27, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N35/1004
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An auto-sampler cleaning mechanism is provided, which is capable of maintaining the supply of a liquid in a non-time-consuming manner when a cleaning solution is supplied. The auto-sampler cleaning mechanism of the present invention includes: a sample-metering sample loop 14 having a sample-injecting needle 15 at a front end thereof, a metering pump 24, a multi-ported valve 11a, a multi-position valve 11b, and a liquid-supply valve 11c. A diaphragm pump 25 is disposed between the port of the multi-position valve 11a and the port of the liquid-supply valve 11b, and used to supply a cleaning solution 26 or a mobile phase 20 to the sample loop 14.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.