POLYCHLORODIBENZODIOXINS AND POLYCHLORODIBENZOFURANS IN DIOXAZINE DYES AND PIGMENTS

被引：24

作者：

WILLIAMS, DT

LEBEL, GL

BENOIT, FM

机构：

[1] Bureau of Chemical Hazards, Health and Welfare Canada, Environmental Health Centre, Ottawa, Ont. K1A 0L2, Tunney's Pasture

来源：

CHEMOSPHERE | 1992年 / 24卷 / 02期

关键词：

D O I：

10.1016/0045-6535(92)90390-D

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A method for the extraction and analysis of polychlorodibenzodioxins (PCDD) and polychlorodibenzofurans (PCDF) in dioxazine dyes and pigments has been developed. The dye or pigment was dissolved-dispersed in sulfuric acid and the PCDD/PCDF extracted with hexane. After Florisil and carbopack column clean-up the PCDD/PCDF were analysed by high resolution gas chromatography - high resolution mass spectrometry. Direct Blue 106 dyes and Violet 23 pigments contained ug/g levels of octachlorodibenzodioxin and octachlorodibenzofuran. The dyes and pigments also contained ng/g levels of hepta-, hexa- and penta congeners.

引用

页码：169 / 180

页数：12

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