Thermal desorption-capillary gas chromatography for the quantitative analysis of dimethyl sulphate, diethyl sulphate and ethylene oxide in the workplace.
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.
Düblin
T
T
Sandoz Ltd., Basle, Switzerland.
Thöne
H J
HJ
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*
D000395:Air Pollutants, Occupational; D009153:Mutagens; D013463:Sulfuric Acid Esters; D013464:Sulfuric Acids; D005027:Ethylene Oxide; C007482:dimethyl sulfate; C011612:diethyl sulfate