Automated liquid handling and computer controlled system and method for solid phase chromatographic extractions
US5531959A · kind A · utility
36Cited by
16References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 1994 |
| Grant date | Jul 2, 1996 |
| Priority date | — |
| Expiry date | Jan 31, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/8886
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for solid phase extraction chromatography is disclosed in which the flow rate of a fluid, such as the motive pressurized gas is monitored, adjusted and compared with a standardized pressure curve which is correlative of a sample being processed. By monitoring and adjusting changes in flow rate, which can correspond to process initialization, beginning, ending and key fractionating points, and correlating to a standard, the cycle time for assaying the sample in question can be maximized and multiple samples can pass through analysis automatically and quickly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.