Determination of ethylene oxide in ethoxylated surfactants and demulsifiers by headspace gas chromatography.
A headspace gas chromatographic method for the determination of traces of ethylene oxide in ethoxylated surfactants and demulsifiers was developed. Samples are analyzed directly by the technique to a 1.0 ppm (w/w) quantitation limit. The procedure also performs well for propylene oxide, acetaldehyde, and 1,4-dioxane. It is simple, sensitive, and linear. The percent relative standard deviations for 0.5 and 30 ppm ethylene oxide in the surfactant were 2.8 and 8.3%, respectively.
Dahlgran
J R
JR
BorgWarner Chemicals, Technical Centre, Washington, WV 26181.
Shingleton
C R
CR
D002849:Chromatography, Gas; D005027:Ethylene Oxide / Q000032:analysis*; D005079:Excipients; D007202:Indicators and Reagents; D013501:Surface-Active Agents / Q000032:analysis*
D005079:Excipients; D007202:Indicators and Reagents; D013501:Surface-Active Agents; D005027:Ethylene Oxide