RESEARCH IN ENVIRONMENTAL-POLLUTION .9. A NEW MICRO METHOD FOR THE EXTRACTION OF POLYCHLORINATED-BIPHENYLS (PCBS) FROM SEWAGE SLUDGES

被引：5
作者：
STEINWANDTER, H
机构：
[1] Hessische Landwirtschaftliche Versuchsanstalt, Darmstadt, D-64295
来源：
FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1993年 / 347卷 / 10-11期
关键词：
D O I：
10.1007/BF00635471
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Sewage sludges are treated with concentrated sulphuric acid and coated on silica gel. For the extraction and clean-up steps only a total solvent amount of 20 ml is necessary. The results of this ''H2SO4-method'' are compared with already tested micro extraction methods. It was found that the proposed method is equally effective and can therefore be used for routine analysis. The reduction of solvents and chemicals waste by miniaturisation of analytical procedures is an important step for environmental protection.
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页码：436 / 440
页数：5
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