Chelate-modified polymers for atmospheric gas chromatography

US4198792A · kind A · utility

Inventors

• Robert A. Administrator of the National Aeronautics and Space Frosch · La Cañada Flintridge, US
• Warren W. Christensen · San Jose, US
• Ludwig Mayer · San Jose, US
• Fritz H. Woeller · Sunnyvale, US

Key dates

• Filing date: Jun 30, 1978
• Grant date: Apr 22, 1980
• Expiry date: Jun 30, 1998

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S521/918
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

New chromatographic materials have been developed to serve as the stationary phase of columns used in the separation of atmospheric gases. These materials consist of a crosslinked porous polymer matrix, e.g., a divinylbenzene polymer, into which has been embedded an inorganic complexed ion such as N,N'-ethylene-bis(acetylacetoniminato)-cobalt (II). Organic nitrogenous bases, such as pyridine, may be incorporated into the chelate polymer complexes to increase their chromatographic utility. With such materials, the process of gas chromatography is greatly simplified, especially in terms of time and quantity of material needed for a gas separation.