Simplified Method of Determining Chlordanes in the Soil Using Partial Dechlorination

概要

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A gas chromatographic procedure has been developed for determination of chlordanes in environmental samples such as soil. The basis of the method is the conversion of many of these chlorinated C_<10> hydrocarbons into a single partial dechlorinated product, which is determined by gas chromatography with an electron capture detector. Soil is extracted with hexane. The extract is cleaned up on a Florisil cartridge and dechlorinated with Zn/HCl. The dechlorinated compound is injected into a gas chromatograph and chlordanes determined as one partially dechlorinated compound. The detection limit in this method is 0.002 μg/g. The coefficient of variation was 3.2% for soil samples while the average recovery was 94.3%. Although capable of determining only 4,7-methanoindanes, which comprise more than 80% of the chlordanes, the significance of the method is recognized as the first means of screening for chlordanes. To date application has been made only to soil samples, but it is believed that with selection of the proper solvent for extraction, the method can be more broadly applied to samples such as food and biological samples.
公益社団法人日本薬学会の論文
1990-04-28