Analysis apparatus having a plurality of liquid chromatographs and its analysis method
US11982655B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2019 |
| Grant date | May 14, 2024 |
| Priority date | — |
| Expiry date | Mar 5, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/628
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention makes it possible to realize an analysis apparatus having a plurality of liquid chromatographs capable of judging separation performance and the like at the right timing and improving analysis performance early. Analysis starts and a mixed sample is prepared by adding a non-retaining ingredient to a measurement object sample and is introduced into an analysis flow path (S401 to S404). The mixed sample is separated into components by a separation column, the components are outputted as chromatogram data by a detector, and the analysis finishes (S404 to S406). Retention time and peak information are acquired from the chromatogram outputted from the detector, whether or not a measurement result is within an allowable range is judged, and the process shifts to next analysis when the measurement result is within the allowable range (S407 to S409). An amount of transit time t0 of a non-retaining ingredient shifted from an allowable value is confirmed when separation performance is outside an allowable range at step S408 and a separation column replacement instruction is outputted to an output unit when fluctuation of the transit time t0 is within an allowable range …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.