Determination of mono-, di- and trinitronaphthalenes in soil samples contaminated by explosives |
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Authors: | Bausinger Tobias Dehner Ulrich Preuss Johannes |
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Institution: | Geographisches Institut, Johannes Gutenberg-Universit?t Mainz, J.-J. Becherweg 21, D-55099 Mainz, Germany. t.bausinger@web.de |
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Abstract: | We investigated the extraction of eight mono-, di- and trinitronaphthalenes from soil samples by ultrasonic, respectively, soxhlet extraction. Sonication was the more convenient procedure with a usually higher repeatability than the soxhlet method. All extracts were analysed by high-performance liquid chromatography with diode array detection. These methods were used to determine the concentration of nitronaphthalenes in five soil samples polluted by explosives. The most abundant contaminants were 1,5- and 1,8-dinitronaphthalene as well as 1,3,5-, 1,3,8- and 1,4,5-trinitronaphthalene. In all samples the sum of trinitronaphthalenes exceeded the sum of mono- and dinitronaphthalenes. It is recommendable to include these eight compounds in the analytical exploration of sites contaminated by explosives. |
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