Chromatography and related apparatus system
US5837135A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 3, 1997 |
| Grant date | Nov 17, 1998 |
| Priority date | — |
| Expiry date | Jul 3, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N30/78
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Proposed is an improvement in a detection and recording system in the conventional chromatography in which the chromatographic signals are detected by means of a single detector sometimes to cause difficulties in resolution of the signal of minor component masked by the major component or in separation of two components having about the same retention times. The improvement comprises using two or more detectors to generate signals with a phase difference and recording the differential signal between the two signals obtained in the plurality of detectors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.