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- E-ISSN 2288-8985
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- P-ISSN1225-0163
- E-ISSN2288-8985
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PCBs concentration and congener distribution in transformer insulation oilsamples using GC/ECD and HRGC/HRMS analysis
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2005, v.18 no.3, pp.232-240
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(2005). PCBs concentration and congener distribution in transformer insulation oilsamples using GC/ECD and HRGC/HRMS analysis. Analytical Science and Technology, 18(3), 232-240.
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Abstract
The total PCBs level in the transformer insulation oil samples using GC/ECD and HRGC/HRMS were ranged from 0.087 to 223.6 g/g and ranged from N.D. to 154.04 g/g, respectively. The calculated TEQ values were ranged from 0.00067 to 6.8 ng WHO-TEQ/g. Among the samples, 6 samples showed higher than 2 ppm concentration (specific waste criterion of Korea). A variety in the concentration of total PCBs were observed between ECD and HRMS analysis. This is maybe due to quantification mehtod. The Aroclor 1248 wasnt present in the samples. The distribution pattern of Co-PCB congeners showed that the ratio of mono-ortho substituted congeners were higher than non-ortho substituted congeners. Among that, PCB-167 congener was predominant. In addition, the distribution of Co-PCBs congeners was different with that of flue gas and ambient air samples as well as commercial PCB formulations (Aroclor, Kanechlor).
- keywords
- PCBs, Transformer insulation oil, Arolcor, Kanechlor, GC/ECD, HRGC/HRMS
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