|
|
| | Mmualefe, Lesego C et al. 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, Mar 2008, vol.34, no.3, p.405-410. ISSN 1816-7950
|
|
