Method for separating selected materials in a gas chromatograph and gas chromatograph for carrying out the method

US5979221A · kind A · utility

Assignee

• WMA Airsense Analysentechnik GmbH · DE

Inventors

• Andreas Walte · Schwerin, DE
• Wolf Münchmeyer · Wittingen, DE
• Gerhard Matz · Kürten, DE
• Alexander HARDER · Hamburg, DE
• Oliver Räther · Lilienthal, DE

Key dates

• Filing date: Feb 23, 1998
• Grant date: Nov 9, 1999
• Expiry date: Feb 23, 2018

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2030/3007
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method and apparatus for separating selected materials in a gas chromatograph. The gas mixture is introduced into a separation column of the gas chromatograph and the separation column is heated inside a chamber of the gas chromatograph to a preset temperature. The preset temperature is matched to the material to be separated and that heating is accomplished by using IR radiation.