Analysis apparatus
US12078620B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2020 |
| Grant date | Sep 3, 2024 |
| Priority date | — |
| Expiry date | Oct 26, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/385
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An analysis apparatus capable of adjusting holding time of each stream in a plurality of HPLC streams without adjusting a pipe length, and capable of determining degradation of a separation column, a liquid-delivery failure, or the like without removing a pipe from the apparatus is implemented. Air is suctioned from the shipper 109 and injected into the verification flow paths 122 and 123, and holding time when a baseline of the detector 125 changes is stored in the control unit 130. The air in the verification flow paths 122 and 123 of the stream 101 and the stream 102 is measured, and holding time of the stream 101 and holding time of the stream 102 are compared to determine whether or not there is a difference of 1 second or more in the holding time. When the difference in holding time is 1 second or more, correction is performed. Holding time information of the same verification flow paths 122 and 123 in the stream 101 and the stream 102 are compared with holding time information stored in the control unit 130 and correction is performed when the difference in holding time is 1 second or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.