Summary
An improved interface for the coupling of a liquid chromatograph (LC) and an electron-capture detector (ECD) allows the use of the LC-ECD combination for the determination of various types of chlorinated aromatic compounds. The addition of up to 6% of dioxan to the hexane used as mobile phase can be tolerated without serious deterioration of detector performance. Derivatization of polar compounds such as anilines, phenylurea herbicides, chlorophenols and hydroxylated polychlorobiphenyls with fluorine-and non-fluorine-containing acid anhydrides is a useful tool to extend the application range of LC-ECD. As an example, the analysis of a spiked soil sample is discussed.
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de Kok, A., Geerdink, R.B. & Brinkman, U.A.T. An improved interface for liquid chromatography/electron-capture detector coupling. Part II. Chromatographia 16, 237–241 (1982). https://doi.org/10.1007/BF02258910
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DOI: https://doi.org/10.1007/BF02258910