DETERMINATION OF CHLORINATED LONG-CHAIN PARAFFINS IN WATER, SEDIMENT AND BIOLOGICAL SAMPLES

被引：33

作者：

HOLLIES, JI ^{[1
]}

PINNINGTON, DF ^{[1
]}

HANDLEY, AJ ^{[1
]}

BALDWIN, MK ^{[1
]}

BENNETT, D ^{[1
]}

机构：

[1] SHELL RES LTD,SITTINGBOURNE RES CTR,SHELL TOXICOL LAB,SITTINGBOURNE ME9 8AG,KENT,ENGLAND

来源：

ANALYTICA CHIMICA ACTA | 1979年 / 111卷 / 01期

关键词：

D O I：

10.1016/S0003-2670(01)93263-5

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Methods are described for the routine determination of traces of industrial chloro-n-paraffins having 13-30 carbon atoms and chlorine contents of 42-45% (frw/w), in environmental samples of water, sediments and biota. The procedures are based on thin-layer chromatography detection and measurement. All samples are cleaned up by liquid-solid adsorption chromatography and thin-layer chromatography but those rich in lipids require preliminary solvent extraction. The methods distinguish between chloro-n-paraffins based on long carbon chains (C20-C30) and those based on shorter chains (C13-C17). The methods cover the ranges 500 ng l-1 to 8 μg l-1 for water (i.e. from about the solubility limit upwards) and 50 μg kg-1 to 16 mg kg-1 for sediments and biota. The precision of the methods ranges from ± 50% relative at the lowest concentrations to ± 12% relative at the highest. Recoveries are about 90% for water, 80% for sediments and between 80 and 90% for biota according to sample type. © 1979.

引用

页码：201 / 213

页数：13