Abstract
Techniques for the removal of dieldrin from wool are compared and methods of analysis are described.
A culorimetric method [19] is satisfactory, when proceeded by prior cleanup of the extract. Gas chromatography on a silicone oil column, without any preliminary cleanup, gives an excellent separation of dietdrin. This method has been used to measure fastness properties of dieldrin-treated wool, and data obtained earlier with radioactive dieldrin [28] have been confirmed.'
The gas chromatographic procedure may also be used for the determination of other chlorinated mothproofing agents in wool, and the fastness properties of DDT and Dilene (TDE) on wool have been determined by this method. The washfastness of dieldrin, Dilene and DDT on wool are all similar, but fastness to dry cleaning is in the order dieldrin>Dilene>DDT.
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