Liquid chromatograph analyzer and method of controlling the same
US12298283B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2020 |
| Grant date | May 13, 2025 |
| Priority date | — |
| Expiry date | Apr 8, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/385
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Tests of channels of a system as a whole can be easily performed without adding a complicated mechanism. A liquid feeding part includes a liquid feeding channel to feed a mobile phase, a drainage channel to release pressure in the liquid feeding channel, an analysis channel that discharges the mobile phase into the sample introduction part, and a channel switching valve that selectively connects the liquid feeding channel to one of the drainage channel and the analysis channel. The channel switching valve is configured to be able to provide a tight stopper state in which the liquid feeding channel is connected to neither the analysis channel nor the drainage channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.