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Extraction of explosives from soil followed by gas chromatography-mass spectrometry analysis with negative chemical ionization
Stockholm University, Faculty of Science, Department of Analytical Chemistry.
2012 (English)In: Journal of Chromatography A, ISSN 0021-9673, E-ISSN 1873-3778, Vol. 1222, 109-115 p.Article in journal (Refereed) Published
Abstract [en]

A new, simple and accurate method for extraction of explosives from soil was developed and validated. The method includes one hour gentle extraction of compounds from soil in acetonitrile:dichloromethane 50:50 at 30 degrees C. Further analysis was made with GC-MS using cool on-column injection and negative chemical ionization. The method increased the recovery of the more volatile products, generated higher accuracy and was extensively time-saving compared to the conventional EPA (US Environmental Protection Agency) 8330 method. Applications are demonstrated on commercial reference materials.

Place, publisher, year, edition, pages
2012. Vol. 1222, 109-115 p.
Keyword [en]
Explosives, GC-MS, Extraction, Soil, Chemical ionization
National Category
Analytical Chemistry
URN: urn:nbn:se:su:diva-76320DOI: 10.1016/j.chroma.2011.12.014ISI: 000300115700013OAI: diva2:526884
3Available from: 2012-05-15 Created: 2012-05-10 Last updated: 2012-05-15Bibliographically approved

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Colmsjö, Anders
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