Automatic sampler
US7195229B2 · kind B2 · utility
17Cited by
6References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 27, 2003 |
| Grant date | Mar 27, 2007 |
| Priority date | — |
| Expiry date | Jul 16, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/11
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a direct injection type automatic sampler, a sampling needle having a liquid sample collected from a sample vessel by using suction force of a pump is inserted into an injection port. Then, a flow path-switching valve is rotated to switch a flow path to make a flow of mobile phase liquid pass through a loop to thereby introduce the collected sample into a column. The injection port is directly incorporated in the flow path-switching valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.