Volatile and semivolatile organo-halogen trace analysis in surface water by direct aqueous injection GC-ECD

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• 作者：Wolska ; Lidia ; Olszewska ; Celina ; Turska ; Marta ; Zygmunt ; Bogdan ; Namiesnik ; Jacek
• 关键词：volatile and semivolatile chloroorganics ; surface water ; direct aqueous injection gas chromatography ; electron capture detector
• 刊名：Chemosphere
• 出版年：1998
• 期刊代码：15_00456535
• 类别：env
• 出版时间：December, 1998
• 卷：37
• 期：13
• 页码：2645-2651
• 文件大小：234 K

摘要

A procedure for simultaneous determination of volatile and semivolatile chloroorganic compounds (from trichloromethane to di- and trichlorobenzenes to hexachlorobutadiene) in aqueous samples was developed. The procedure is based on a DAI-GC-ECD technique widely used for trihalomethanes determination in drinking water. The DAI technique application could have been extended to semivolatile chloroorganic compounds by using a Rtx-624 (60 m × 0.32 mm I.D., d_f 1.8 μm (6%cyanopropyl, 94%dimethyl polysiloxane). Precision (R.S.D.) and detection limits of the DAI-GC-ECD procedure with respect to 12 volatile and semivolatile chloroorganics were determined. Relative standard deviations (R.S.D.) were lower than 22%and the detection limits (concentration equivalent to a peak height three times the baseline noise) range from 0.02 μg L⁻¹ for trichloroethene and tetrachloroethene to 0.25 μg L⁻¹ for hexachlorobutadiene to 1.6 μg L⁻¹ for 1,2-dichlorobenzene. The method was successfully used to determine chloroorganic pollutants in river water.