DETERMINATION OF CHLOROBIPHENYLS, WITH THE SEPARATION OF NON-ORTHO, MONO-ORTHO AND DI-ORTHO CHLORO CONGENERS IN FISH AND SEA MAMMALS

被引：19

作者：

WELLS, DE ^{[1
]}

ECHARRI, I ^{[1
]}

机构：

[1] UNIV ZARAGOZA, DEPT ANALYT CHEM, ZARAGOZA, SPAIN

来源：

ANALYTICA CHIMICA ACTA | 1994年 / 286卷 / 03期

关键词：

GAS CHROMATOGRAPHY; CHLOROBIPHENYLS; ENVIRONMENTAL ANALYSIS; FISH; SEA MAMMALS;

D O I：

10.1016/0003-2670(94)85089-5

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A method for the preparation, clean-up and separation of chlorobiphenyls (CBs) into fractions containing non-ortho CBs, mono-ortho CBs and di-tri-ortho CBs is given. Methods of clean-up by gel permeation, saponification and sulphuric acid impregnated silica gel are compared. Highly chlorinated CBs were shown to decompose under alkaline hydrolytic conditions. The cleaned-up samples were fractionated using a 250 mm pyrenyl liquid chromatographic column and determined by GC-ECD and GC-NICIMS. The limit of determination was 10-50 pg kg(-1) (wet weight) for a 10-g sample and the overall long-term variance for the method was less than or equal to 15%.

引用

页码：431 / 449

页数：19

共 58 条

[1] A STRUCTURE ACTIVITY RELATIONSHIP (SAR) APPROACH TOWARDS METABOLISM OF PCBS IN MARINE ANIMALS FROM DIFFERENT TROPHIC LEVELS [J].