Flow passage unit
US11125730B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2017 |
| Grant date | Sep 21, 2021 |
| Priority date | — |
| Expiry date | Jul 28, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/027
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A flow passage unit has a column for used in a liquid chromatograph and a support body that supports the column. The column has: a porous stationary phase; a porous pressure adjusting part disposed at least at the flow-in end of the stationary phase, a liquid entering the flow-in end, the pressure adjusting part being harder than the stationary phase; and a covering part that covers the stationary phase and pressure adjusting part. The support body has a first plate and a second plate that are mutually joined, the support body forming a column holding part and a liquid flow passage, the column holding part holding the column between the first plate and the second plate, the liquid flow passage communicating with the column holding part. Pressure applied from the first plate and second plate to the pressure adjusting part is higher than pressure applied to the stationary phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.