Sample injection apparatus and liquid chromatography apparatus having the sample injection apparatus
US7500386B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2008 |
| Grant date | Mar 10, 2009 |
| Priority date | — |
| Expiry date | Feb 4, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2035/00554
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sample injection apparatus and a liquid chromatography apparatus including the sample injection apparatus are provided. The sample injection apparatus includes a sampling vessel into which a sample is supplied, a sampling needle for aspirating and ejecting the sample, a cleaning part into which a cleaning liquid for cleaning at least the sampling needle is supplied, a sample injection part for injecting the sample ejected from the sampling needle into a moving liquid, and a needle transfer part for transferring the sampling needle among the sampling vessel, the cleaning part and the sample injection part, wherein the cleaning part includes an ultrasonic vibrator for generating an ultrasonic wave in the cleaning liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.