Sample injector with sample fluid filtering
US12420215B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2021 |
| Grant date | Sep 23, 2025 |
| Priority date | — |
| Expiry date | Jul 28, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/027
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sample injector is provided for a chromatography system that includes a mobile phase drive and a separation unit. The mobile phase drive is configured for driving a mobile phase through the separation unit, and the separation unit is configured for chromatographically separating compounds of a sample fluid in the mobile phase. The sample injector is configured for injecting the sample fluid into the mobile phase and comprises a needle and a handling unit configured for positioning the needle. Operating the sample injector includes providing a receptacle that includes a filtration unit configured for filtering a sample fluid comprised within the receptacle, moving the filtration unit within the receptacle in order to filter at least a portion of the sample fluid contained in the receptacle, operating the handling unit to position the needle into the receptacle, and aspirating a volume of the filtered sample fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.