Hochdruck-Vorsäule

Details

Veröffentlichungs-Nr.

EP2597460

Aktenzeichen

EP11190383

Anmeldetag

23. November 2011

Veröffentlichung

20. März 2019

Erteilung

20. März 2019

Rechtsraum

EP

IPC

G01N30/06G01N30/08G01N30/56G01N30/46

Abstract

A guard column for chromatography includes: a housing having an inlet and an outlet; and a guard column configured to be enclosed in the housing, wherein the guard column includes: a tubular body having an axial bore; and a first filter and a second filter disposed at a first end and a second end of the tubular body to define a chamber for holding a packing material, wherein the first filter comprises a filter element having a peripheral region coated or covered with a polymeric material and a center filter region for fluid passage, wherein the filter element has an outside diameter equal to or larger than an outside diameter of the first end of the tubular body and the center filter region of the filter element has a diameter smaller than an inside diameter of the first end of the tubular body, wherein the housing encloses the guard column in a manner that presses the first filter and the second filter, respectively, against the first end and the second end of the tubular body such that the packing material in the chamber is compressed.

Anmelder

Firma

Agilent Technologies, Inc.

Land

🇺🇸 USA

Fachgebiete