Patent · US Expired

Separation column for chromatography

US5651886A · kind A · utility

10Cited by

22References

4Claims

0Family size

Assignee

Hewlett-Packard Company, L.P. · US

Inventors

Bernd Hoffmann · Frankfurt am Main, DE
Guenter Schaeufele · Karlsruhe, DE

Key dates

Filing date	Apr 29, 1996
Grant date	Jul 29, 1997
Priority date	—
Expiry date	Apr 29, 2016

Classification

Technology area (CPC G)Physics
CPC primaryG01N30/6004
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A separation column for chromatography, such as for liquid chromatography or supercritical fluid chromatography, comprises a separation tube made of a ceramic composite material and a stationary phase packed into the separation tube. The column has a high pressure stability and smooth inner surface leading to improved chromatographic properties.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.