May 2009

Characterization of clays in Odukpani, south eastern Nigeria

  A combination of analytical techniques such as atomic absorption spectroscopy (AAS), X-ray diffraction (XRD), infra red spectral (IR) analysis, energy dispersive analysis of X-ray (EDAX), differential thermal analysis (DTA) and thermogravimetric analysis (TGA) were employed to characterize clays from Odukpani, Cross River State, Nigeria. The samples were also subjected to physico-chemical tests. The results...

Author(s): V. N. Osabor, P. C. Okafor, K. A. Ibe and A. A. Ayi

May 2009

Polycyclic aromatic hydrocarbons (PAHs) contamination of synthetic industrial essential oils utilized in Northern Nigeria

  This paper provides supplementary information to earlier elucidations on the level of dioxin contaminations of synthetic industrial essential oils (SIEOs), commonly referred to as Turare (Hausa Language) utilized in Northern Nigeria. In this work, fifteen typical samples of this product was analysed for the EPA-16 targeted Polycyclic Aromatic Hydrocarbons (PAHs) using GC-MS methodology. The result revealed...

Author(s): Hati S. S., Dimari G. A., Egwu G. O. and Ogugbuaja, V. O.

May 2009

Spectrophotometric and conductometric studies of the thermodynamics complexation of Zn2+, Cu2 +, Co2 +, Ni+2 and Cd2+ ions with a new schiff base ligand in acetonitrile solution

  The complex-formation reactions between Cu2+, Zn2+, Co2+, Ni2+ and Cd2+ ions with 2-[(E)-(2-(2-(pyridine-2-yl)-ethylthio)ethylimino)methyl]-4-bromophenol(PYTABr) has been studied by spectrophotometric and conductometric methods in acetonitrile at various temperatures. Formation constants of the 1:1 and 1:2 (metal ion to ligand) complexes were evaluated from computer fitting of the absorbance-mole...

Author(s): Mahmood Payehghadr, Ali Akbar Babaei, Lotfali Saghatforoush and Fraydoun Ashrafi

May 2009

Studies on the effects of the honey of two floral types (Ziziphus spp. and Acelia spp.) on organism associated with burn wound infections

  The honey of 2 Nigerian honey of 2 floral types (Ziziphus spp. and Acacia spp.) was studied. Standard physicological composition of honey quality, that is, ash, pH, acidity, color, refractive index, conductivity, moisture, mineral content, hydroxymethyl furfural (HMF) contents and diastae number (DN) of the spp were determined. Compositional variation due to the floral types shows...

Author(s): E. T. Williams, J. Jeffrey, J. T. Barminas, I. Toma and P. Alexander