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rangaisuifeng银虫 (正式写手)
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【求助】溴代二噁英（呋喃）的TEF值及文献
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ztt06
铁杆木虫 (文坛精英)
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rangaisuifeng(金币+1):谢谢高手 2010-03-16 18:34
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建议还是按照类似的PCDDF的TEF值进行计算吧，请参考这篇文献 Gullett B.K., et al., Environ. Sci. Technol. 2010, 44, 394–399 PCDD/F TEQ values were calculated based on World Health Organization (WHO) toxic equivalency factors (TEFs) (16) and PBDD/F TEFs were assigned as those of their PCDD/F equivalents (14). This latter assumption was based, in part, on recently published in vitro bio- and immunoassay assessments ofPBDD/Faryl hydrocarbon (AhR) agonist properties and dioxin-like toxicity (9, 10, 26). The International Programme on Chemical Safety (IPCS) of WHO suggested that until TEFs for PBDD/PBDF are established, the preliminary use of the same TEF values as described for the chlorinated analogues appears to be justified (14). Initially, filters and PUFs were extracted separately to determine the distribution of the targets. Since virtually all of the target analytes were found on the filter, subsequent analyses were done with combined filters and PUFs. This also minimized the impact of copious nondetects on the PUFand their effect on the emission factor calculation when nondetects were set to the detection limit. |
2楼2010-03-16 08:36:49
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3楼2010-03-16 08:48:12
rangaisuifeng
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4楼2010-03-16 23:59:27
