Automatic solid phase extraction device with interchangeable nozzle holder head
US5660792A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 8, 1995 |
| Grant date | Aug 26, 1997 |
| Priority date | — |
| Expiry date | Dec 8, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/2575
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
When conducting preprocessing to extract targeted components sample solution, the purpose is to be able to conduct the processing in a shortened length of time by greatly shortening the entire processing time, even if the number being processed is increased. A single needle holder, to which a single needle nozzle is attached to take sample solution into test tubes arranged in a sample rack and inject the sample solution into solid phase extraction tubes, and a multiple linked needle holder for injecting solvent, to which multiple needle nozzles are attached to simultaneously supply multiple solid phase extraction tubes with solvent, are mounted interchangeable on a head, the movement of which can be controlled in the directions of three orthogonal axes; and when aforementioned needle holders are mounted on said head, flow rate control pumps, which are switchable between the intake and discharge directions, are mounted through the piping which connects those needle nozzles with the solvent supply sources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.