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Water SA
versión On-line ISSN 0378-4738

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MMUALEFE, Lesego C; TORTO, Nelson; HUNTSMAN-MAPILA, Philippa  y  MBONGWE, Bontle. Supercritical fluid extraction of pesticides in sediment from the Okavango Delta, Botswana, and determination by gas chromatography with electron capture detection (GC-ECD) and mass spectrometry (GC-MS). Water SA [online]. 2008, vol.34, n.3, pp. 405-410. ISSN 0378-4738.