title: Automated capillary gas chromatographic system to monitor ethylene emitted from biological materials.
abstract: 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.
authors.affiliation: Department of Organic Chemistry, University of Ghent, Belgium.
authors.forename: H
authors.initials: H
authors.lastname: Pham-Tuan
authors.forename: J
authors.initials: J
authors.lastname: Vercammen
authors.forename: C
authors.initials: C
authors.lastname: Devos
authors.forename: P
authors.initials: P
authors.lastname: Sandra
mesh_terms: D001331:Automation; D002849:Chromatography, Gas / Q000379:methods*; D005030:Ethylenes / Q000032:analysis*; D010944:Plants / Q000737:chemistry*; D012680:Sensitivity and Specificity
chemical_list: D005030:Ethylenes; C036216:ethylene