Autosampler and fluid chromatograph
US11543390B2 · kind B2 · utility
1Cited by
6References
8Claims
0Family size
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Key dates
| Filing date | Jul 4, 2017 |
| Grant date | Jan 3, 2023 |
| Priority date | — |
| Expiry date | Nov 11, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/207
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An autosampler sets an injection valve to be in a sample filling state when a sample loop is filled with a sample, and, after completion of filling with the sample, switches the injection valve to an intermediate state and first connects only one end of the sample loop to a liquid delivery channel and an analysis channel. After the above, the injection valve is switched to the sample injection state and the sample loop is interposed between the liquid delivery channel and the analysis channel, so that the sample is injected into the analysis channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.