Congener-specific distribution of polychlorinated dibenzo-p-dioxins, dibenzofurans and biphenyls in animal feed

被引：7

作者：

Kim, BH ^{[1
]}

Jeong, JS ^{[1
]}

Chang, YS ^{[1
]}

机构：

[1] Pohang Univ Sci & Technol, Sch Environm Sci & Engn, Pohang 790784, South Korea

来源：

FOOD ADDITIVES AND CONTAMINANTS | 2003年 / 20卷 / 07期

关键词：

polychlorinated dibenzo-p-dioxins (PCDDs); polychlorinated dibenzofurans (PCDFs); polychlorinated biphenyls (PCBs); animal feed; Korea;

D O I：

10.1080/0265203031000109468

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Polychlorinated dibenzo-p-dioxins (PCDDs), dibenzofurans (PCDFs) and polychlorinated biphenyls (PCBs) were extracted by accelerated solvent extraction from animal feed samples and analysed by high-resolution gas chromatography/high-resolution mass spectrometry (HRGC/HRMS). In all of the feed samples analysed, the concentrations of PCDD/Fs and PCBs were below the existing tolerance limit of 5 pg I-TEQ g(-1) and 200 ng g(-1) fat, respectively. The mean concentrations of the total PCDDs, total PCDFs and total PCBs were 1.73-11.50 pg g(-1) , 0.23-11.91 pg g(-1) and 60.00-234.40 pg g(-1) feed, respectively. Investigation of the correlations among the concentrations of PCDDs, PCDFs and PCBs showed that samples containing increased amounts of PCDFs also contained higher concentrations of PCDDs, with an average ratio of PCDF:PCDD of about 1.23:1 (r(2) =0.72, p <0.05). The correlation between the concentrations of PCDD/Fs and PCBs was positive but not significant.

引用

页码：659 / 667

页数：9

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