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Comparison of 4 quantification methods for the determination of PCB in transformer oils
Fresenius Journal of Analytical Chemistry
The analysis of PCB in transformer oils has been achieved with three HRGC/ECD based methods, proposed by the International Electrotechnical Commission (IEC/TC 10), by the Comite Europeen de Normalisation (CEN/TC 19/WG 22) and by the Deutsches Institut fur Normung (DIN 51 527). The same clean-up, described in the CEN/TC 19/WG 22, has been used for all the samples, allowing a comparison of the quantification procedure only. The total chlorine content has also been determined with X-ray fluorescence. These different methods of quantification are compared and their application for legislative purposes is discussed.
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