METHOD FOR SPEEDILY DETECTING DIOXIN BY USING CHLORINATION PROCESS

摘要

PURPOSE: A method for promptly detecting dioxin is provided for accomplishing higher detection limit and correct quantification of dioxin with inexpensive gas chromatography/electron detection device by using antimony chloride to chlorinate dioxin isomers into dioxin octa-chloride. CONSTITUTION: The detection method comprises adding antimony chloride to an extract containing dioxin and heating it to 236-288 deg.C. to produce dioxin octa-chloride; adding HCl to the obtained dioxin octa-chloride to extract hexane material; removing high polar interference material; and detecting dioxin from the extract by means of gas chromatography/electron capturing detector. The method is useful for detecting the dioxin without alternately separating isomers because of the chlorination process and with no requiring commercial pre-treatment step separating isomers.