Sample/standard injection head for fluid-phase chromatograph
US4288322A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1980 |
| Grant date | Sep 8, 1981 |
| Priority date | — |
| Expiry date | Sep 29, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/204
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An improved device/apparatus for sweeping and injecting a sample and at least one standard into the separation column of a fluid-phase chromatograph, including (i) means for securing same to the inlet of such separation column, (ii) a supply inlet for a stream of carrier medium and means for directing said stream to said separation column, (iii) dividing means in said device for dividing said stream into primary and secondary streams, (iv) distributing means for directing said primary stream to said separation column and distributing said primary stream over the inlet area of said column, (v) means for directing said secondary stream axially into said separation column inlet, and (vi) means for introducing a sample into said secondary stream, the improvement which comprises (vii) means for introducing at least one standard also into said secondary stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.