Analysis system and method for rapidly detecting vitamin d in an oil or fat, or a biological sample
US11946911B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2019 |
| Grant date | Apr 2, 2024 |
| Priority date | — |
| Expiry date | Oct 9, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/8813
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to an analysis system that is applied to rapid automatic analysis and detection of highly lipophilic components and a method for rapidly detecting vitamin D in an oil or fat, or a biological sample. In the present invention, online pretreatment and separation of a sample containing highly lipophilic components in a sample to be analyzed are performed by a multidimensional chromatography system. The multidimensional chromatography system includes a supercritical chromatography part and a reverse phase liquid chromatography part sequentially connected, the reverse phase liquid chromatography part including one or more reverse phase liquid chromatography columns, and the supercritical chromatography part including a supercritical mobile phase, a modifier, and a supercritical packed column.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.