Bioassay Analysis of PCBs and Dioxin-like Compounds in the Waste PCB Stockpiles
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概要
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Quantitative analyses with ELISA adopting monoclonal antibody for PCB #118 and DRCALUX dioxin receptor/reporter gene assay were applied to 33 samples of PCB preparations and waste PCB stockpiles in order to grasp the concentration of major PCB congeners (e.g., #118) and evaluate TEQ of the complex mixtures of PCBs, respectively. Cleanup procedure was designed to separate PCBs from sample matrices by conducting DMSO partition and the following silica gel/sulfuric acid (44%) reflux treatment. With the cleanup, both the ELISA and DR-CALUX yielded a linear correlation with the corresponding chemical analysis results (PCB sum and WHO-TEQ, etc.) . Pole transformer oils (mineral oil-based) especially required the cleanup for the both assay evaluation due to the presence of strong matrix interferences. However, for the ELISA, only dilution of high PCB oil samples (transformer insulation oil, capacitor insulation oil, stabilizer oil and heat transfer medium containing 30-100% PCBs) with DMSO gave results in agreement with those obtained for the Kanechlor preparation counterparts.
- 日本環境化学会の論文
日本環境化学会 | 論文
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