Browsing by Author "Torto, N."
Now showing items 1-4 of 4
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Deltamethrin in sediment samples of the Okavango Delta, Botswana
Daka, P.S.; Obuseng, V.C.; Torto, N.; Huntsman-Mapila, P. (Water SA Pretoria; Water Research Commission; http://www.wrc.org.za/, 2006-10)Deltamethrin concentrations were determined in 35 sediment samples collected from three different habitats: channel, lagoon and pool sites from Xakanaxa in the Okavango Delta, NW Botswana. The samples were Soxhlet-extracted ... -
Deltamethrin in sediment samples of the Okavango Delta, Botswana
Daka, P.S.; Obuseng, V.C.; Torto, N.; Huntsman-Mapila, P. (South African Water Research Commission http://www.wrc.org.za, 2006)Deltamethrin concentrations were determined in 35 sediment samples collected from three different habitats: channel, lagoon and pool sites from Xakanaxa in the Okavango Delta, NW Botswana. The samples were Soxhlet-extracted ... -
Headspace solid phase microextraction in the determination of pesticides in water samples from the Okavango Delta with gas chromatography-electron capture detection and time-of-flight mass spectrometry
Mmualefe, L.C.; Torto, N.; Huntsman-Mapila, P.; Mbongwe, B. (Elsevier Ltd, http://www.elsevier.com/locate/microc, 2009)Headspace solid phase microextraction (HS-SPME) was optimized for the analysis of pesticides with gas chromatography electron capture detection (GC-ECD) and high-resolution mass spectrometry. Factors influencing the ... -
Trace enrichment of metal ions in aquatic environments by Saccharomyces cerevisiae
Mapolelo, M.; Torto, N. (Elsevier; www.elsevier.com/locate/talanta, 2004)[Please note that chemical formulae do not display correctly in this abstract]. Sorption properties of baker's yeast cells, characterised as Saccharomyces cerevisiae were evaluated for trace enrichment of metal ions: Cd2+, ...