title: Thermal desorption-capillary gas chromatography for the quantitative analysis of dimethyl sulphate, diethyl sulphate and ethylene oxide in the workplace.
abstract: Sampling on solid adsorbents followed by thermal desorption and gas chromatography was evaluated as a simple method for the quantitative analysis of dimethyl sulphate, diethyl sulphate and ethylene oxide in the workplace environment. Tenax TA and Carbosieve S-III (for ethylene oxide) were found to be suitable adsorbents. The charged tubes can be stored at 22 degrees C for 4 days. The recovery is better than 98% (greater than 80% for ethylene oxide) in the mass range 1 ng-1 micrograms. The recovery is not dependent on air humidity. The limits of detection tested were at the lower parts per billion level.
authors.affiliation: Sandoz Ltd., Basle, Switzerland.
authors.forename: T
authors.initials: T
authors.lastname: Düblin
authors.forename: H J
authors.initials: HJ
authors.lastname: Thöne
mesh_terms: D000395:Air Pollutants, Occupational / Q000032:analysis*; D002849:Chromatography, Gas; D005027:Ethylene Oxide / Q000032:analysis*; D009153:Mutagens / Q000032:analysis*; D013463:Sulfuric Acid Esters / Q000032:analysis*; D013464:Sulfuric Acids / Q000032:analysis*
chemical_list: D000395:Air Pollutants, Occupational; D009153:Mutagens; D013463:Sulfuric Acid Esters; D013464:Sulfuric Acids; D005027:Ethylene Oxide; C007482:dimethyl sulfate; C011612:diethyl sulfate