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Simultaneous measurement of total dichlorodiphenyltrichloroethane (DDT, technical mixture) and polychlorinated biphenyl (PCB-Aroclors 1248 and 1260) is facilitated by quantitative dechlorination to diphenylethane and biphenyl. The two-stage dechlorination reaction utilizes a palladium catalyst deposited onto iron and magnesium particles. The treatment has the advantage of converting the complex chromatographic...
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