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Ethylene chlorohydrin determination by gas chromatography

Time:2015/11/12 5:47:21

Determination of ethylene oxide, ethylene chlorohydrin, and ethylene glycol by gas chromatography


The technique of gas chromatography was employed for the quantitative determination of ethylene oxide, ethylene chlorohydrin, and ethylene glycol. The simultaneous determination of ethylene chlorohydrin and ethylene glycol in an aqueous solution using a single polyethylene glycol column was accomplished under isothermal conditions, while ethylene oxide was determined employing a styrene-divinylbenzene copolymer column. A key step in obtaining useful and reproducible columns for determining trace quantities of ethylene oxide, ethylene chlorohydrin, and ethylene glycol was found to be related to the aging procedure employed. Experimental data indicate that one can quantitatively recover low levels of ethylene chlorohydrin and ethylene glycol from a water-absorbable fabric. The lower limits of detection of ethylene oxide, ethylene chlorohydrin, and ethylene glycol were found to be in the nanogram range.


Sampling of epichlorohydrin and ethylene chlorohydrin in workroom air using Amberlite XAD-7 resin


Activated charcoal, Amberlite XAD-2 and Amberlite XAD-7 were evaluated for the adsorption of epichlorohydrin and ethylene chlorohydrin from air followed by desorption with solvent. Ethylene chlorohydrin was found to be unstable on activated charcoal in the presence of carbon disulfide. Recoveries from XAD-2 were low, and XAD-7 was found to be the best adsorbent for the sampling of these compounds from air.