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J Chromatogr A. 2000 Feb 4;868(2):249-59.

Automated capillary gas chromatographic system to monitor ethylene emitted from biological materials.

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  • 1Department of Organic Chemistry, University of Ghent, Belgium.


An automated capillary gas chromatographic system to measure ethylene emitted from biological materials is presented. The system consists of an on-line sampling device, a thermodesorption preconcentration apparatus and a capillary gas chromatograph with a flame ionization detection system. The limit of detection achievable on the GC system alone is 5 pg ethylene. The use of the strong Carboxen 1000 adsorbent at a sampling temperature as low as -50 degrees C allows sampling of volumes up to a few liters. Ethylene concentrations at low ppt levels can be accurately and reproducibly determined.

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