Carbon-clad zirconium oxide particles

USRE34910E · kind E · reissue

Assignee

• Regents of the University of Minnesota · US

Inventors

• Eric F. Funkenbusch · White Bear Lake, US
• Peter W. Carr · Minneapolis, US
• Douglas A. Hanggi · Windom, US
• Thomas Weber · Ludwigshafen, DE

Key dates

• Filing date: Apr 1, 1993
• Grant date: Apr 18, 1995
• Expiry date: Apr 1, 2013

Classification

• Technology area (CPC —): General

Abstract

Carbon-clad zirconium oxide particles are disclosed which are useful in sorbent applications, particularly as packing materials for High Performance Liquid Chromatography (HPLC). A method for the preparation of chromatographic support material is also disclosed which utilizes low pressure.