UFH Chemistry
Permanent URI for this collectionhttp://hdl.handle.net/20.500.11837/928
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Item Envirotrace of Organotin Compounds in Eastern Cape Harbour Waters(University of Fort Hare, 2004) Kaywire, David MaredithIncreasing public awareness of toxic moieties in our environment has put pressure on the regulatory agencies and the teaching institutions to improve testing methods so that these harmful agents can be identified and quantified at lower levels. n-Butyltin (MBT), di-n-butyltin (DBT) and tri-n- butyltin (TBT) were determined in water and sediment samples of marine systems in the two major harbors located at East London and Port Elizabeth in the Eastern Cape Province. The organotin compounds were determined by optimized aqueous phase ethylation with sodium tetraethylborate method. The extracts were derivatized and the ethylated species were analyzed by gas chromatography. The instrument was fitted with a sensitive and selective flame photometric detector for Sn. The optimized method was verified by performing spiking experiments in natural water and seawater matrices and obtained good recoveries and reproducibility.Item Chemical Technology 2: PAC 315, Degree Examinations June 2023(University of Fort Hare, 2023-06) Maqanda, V.; Onwudiwe, D.Item Environmental Chemistry: PAC 326, Degree Examinations November 2017(University of Fort Hare, 2017-11) Katwire, D.M.; Purcell, W.Item Descriptive Chemistry: PAC 123F, Degree Examinations November 2017(University of Fort Hare, 2017-11) Soyaya, S.M.; Mselena, S.Item Organic Chemistry: PAC 223, Supplementary Examination January 2019(University of Fort Hare, 2019-01) Manene, N.; Aberibigbe, B.Item Environmental Chemistry 2: PAC 326, Supplementary Examinations January 2019(University of Fort Hare, 2019-01) Oyedeji, O.; Nomngongo, P.Item Descriptive Chemistry: PAC 121, Supplementary Examinations January 2019(University of Fort Hare, 2019-01) Odeyeji, O.; Tywabi-Ngeva, Z.Item Physical Chemistry 3: PAC 324, Supplementary Examinations January 2019(University of Fort Hare, 2019-01) Tywabi-Ngeva, Z.; Bahadur, I.Item Environmental Chemistry 2: PAC 326, Degree Examinations November 2018(University of Fort Hare, 2018-11) Oyedeji, O.; Nomngongo, P.Item Chemical Technology 1: PAC 225, Degree Examinations November 2018(University of Fort Hare, 2018-11) Okoh, O.O.Item Inorganic Chemistry: CHE 522, Degree Examinations November 2018(University of Fort Hare, 2018-11) Mbese, J.Z.; Purcell, W.Item Basic Chemistry: PAC 129, Degree Examinations November 2018(University of Fort Hare, 2018-11) Okoh, O.O.Item Descriptive Chemistry: PAC 121, Degree Examinations November 2018(University of Fort Hare, 2018-11) Oyedeji, O.; Tywabi-Ngeva, Z.Item Physical Chemistry: PAC 324, Degree Examinations November 2018(University of Fort Hare, 2018-11) Bahadur, I.; Tywabi-Ngeva, Z.Item Materials Chemistry 1: PAC 227, Degree Examinations November 2018(University of Fort Hare, 2018-11) Maqanda, V.; Oyedeji, O.Item Physical Chemistry 1: PAC 224, Supplementary Examination January 2019(University of Fort Hare, 2019-01) Maqanda, V.; Ngeva, Z.Item Descriptive Chemistry: PAC 123F, Supplementary Examination January 2019(University of Fort Hare, 2019-01) Soyaya, S.M.; Mselana, S.Item Basic Chemistry: PAC 121F, Supplementary Examination 2019(University of Fort Hare, 2019-01) Mselana, S.; Soyaya, S.M.Item Analytical Chemistry: CHE 511, Degree Examinations June 2014(University of Fort Hare, 2014) Katwire, D.M.; Tshentu, Z.