Method of cleaning liquid chromatographic system and liquid chromatographic system
US12259372B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Oct 23, 2022 |
| Grant date | Mar 25, 2025 |
| Priority date | — |
| Expiry date | Apr 3, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/328
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A liquid chromatographic system includes a column, a needle, a valve, a pump, and an analysis flow path. The valve sets the analysis flow path by switching between a first flow path through which an eluent flows from the valve to the column via the needle and a second flow path through which the eluent flows from the valve to the column not via the needle. The first flow path can be cleaned by drive of a first cleaning pump while the first flow path is set, and the second flow path can be cleaned by drive of the first cleaning pump while the second flow path is set.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.