Browsing by Author "Hayford, M.S."
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Item Investigaton of Kpong carbonatite as a potential source for rare earth elements (REEs) using instrumental neutron activation analysis (INAA)(Radiochimica Acta, 2013-11) Hayford, M.S.; Akiti, T.T.; Serfor-Armah, Y.; Dampare, S.B.Instrumental neutron activation analysis (INAA) was used to investigate REEs in carbonatite from Kpong southeastern, Ghana. Total rare earth element (TREEs) obtain were in the range of 540 mg/kg to 705 mg/kg. The total number of rare earth elements (REEs) determined by INAA in the carbonatite rocks from Kpong were 11, namely; La, Ce, Nd, Sm, Eu, Tb, Dy, Ho, Tm, Yb, Lu. The INAA results from the carbonatite show a high enrichment of light rare earth elements (LREEs) deposits, marking the Kpong carbonatite as a potential REE source. © 2013 by Oldenbourg Wissenschaftsverlag, München.Item Multi-element analysis of Ghanaian crude oils by instrumental neutron activation analysis(Journal of Radioanalytical and Nuclear Chemistry, 2012-06) Appenteng, M.K.; Adomako, D.; Saka, D.; Golow, A.A.; Hayford, M.S.; Sarfo, D.K.; Carboo, D.; Yamoah, A.K.K.Instrumental neutron activation analysis based on thermal neutrons from the Ghana Research Reactor-1 facility was utilized to analyze 18 trace elements namely Al, As, Br, Ca, Cd, Cl, Co, Cu, Fe, K, Mg, Mn, Na, Ni, S, Si, V, and Zn in two different crude oil samples from the Saltpond and Jubilee field in the Saltpond, Central region and Cape Three Points, Western region of Ghana, respectively. The sulfur concentration for both samples were low and within globally accepted range of 0.1-0.5%wt for sweet crude oil. The results of the elemental analysis showed that the two samples are relatively low in trace element concentrations compared to crude oils of other countries. Higher Fe concentration in the Jubilee crude oil indicates younger oil. The V/Ni ratios obtained for crude oils from both locations imply a possible marine organic origin and also suggest the Saltpond crude oil is more matured than the Jubilee crude oil. © 2011 Akadémiai Kiadó, Budapest, Hungary.