Patent · US Expired

Chromatography and related apparatus system

US5837135A · kind A · utility

2Cited by
4References
1Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJul 3, 1997
Grant dateNov 17, 1998
Priority date
Expiry dateJul 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.