Gloria Nwanisobi

Nnamdi Azikiwe University, Awka | Unizik · Department of Pure and Industrial Chemistry

Many studies have focused on the phytochemical, antioxidant, and mineral content of red monkey kola (Cola Millenii K. Schum), but there is little or no information on the fatty acid composition of this unique and underutilized plant, which is widely consumed in Africa. With this in mind, the fatty acid composition of the red monkey kola fruit and b...

In order to reduce the use of industrial trans fat in food processing for human consumption, as recommended by the World Health Organization (WHO), and to dramatically reduce cardiovascular disease as a result of its effects. The fatty acid profile of Ficus sur oil seeds was examined in order to consider an alternative to trans fat in meals. The co...

Twelve tropical timbers indigenous to the southeast of Nigeria were analysed for their physical properties with results as follows: pH 4.26-6.72, specific gravity (0.16-0.49), charring temperature (64-116 o C) and porosity index (1.08-2.24%). Results of quantitative and proximate analysis of the constituent of woods studied includes; tannin (760 mg...

The analyses on chemical properties of some tropical timbers have been studied. The physical properties of these timbers varied in the pH(4.26 – 6.85) , moisture content(13%-37%), specific gravity(0.16-0.45), charring temperature (61 – 116o C)and porosity index(1.17-2.08%).Also the solubility behaviors of these timbers were mostly insoluble in hot...

This book covers key areas of Research and Development in Chemistry. The contributions by the authors include Adsorption, aqueous solution, equilibrium, kinetic, thermodynamic, ß-Ketoamides, keto-enol equilibrium, NMR spectroscopy, theoretical calculations, Solvent Effects, p(x)-Laplacian equation, existence, uniqueness, numerical blow-up, variable...

Dumpsites exist throughout the developing countries, this presents a threat to human health. Most of these dumpsites are uncontrolled having grown over time from small dumpsites to large unmanaged waste sites. In this research work, the level of heavy metal concentration in soils of the dumpsites in Enugu central metropolis has been studied. The an...

A cost effective and simple method for the determination of nicotinamide using picric acid is presented. The method used for the analysis is charge transfer complexation. Nicotinamide which is acting as the donor formed a charge transfer complex with picric acid which is acting as the acceptor, to form a nicotinamide- picric acid complex with a sto...

A cost effective and sensitive spectrophotometric method has been developed for the assay of paracetamol in pure and commercial forms. The method employed was charge transfer complexation. Paracetamol formed a 1:2 stoichiometric ratio with picric acid. The complex was quantified at 500nm. Beer –Lambert’s law was obeyed within a concentration range...

The aim of this research work is to carry out a comparative study to assess the physicochemical parameters of groundwater within Akpugo area of Enugu state, Nigeria. Ten water samples were collected from ten communities within Akpugo area of Enugu State and analyzed for physicochemical characteristics. The heavy metals; iron, chromium, lead, zinc,...

A spectrophotometric and thermodynamic method is described for the assay of glibenclamide. The method is based on charge transfer complexation reaction of glibenclamide as n-electron donor with 2,3-Dichloro-5,6-Dicyano-1,4-benzoquinone (DDQ) as 𝜋-acceptor to form highly coloured charge transfer complex with a stoichiometric ratio of 1:1. The colour...

Abstract : A simple and sensitive spectrophotometric method is described for the quantitative determination of 4-aminobenzoic acid (PABA). The method is based on charge transfer complexation reaction of PABA as n-electron donor with 2, 3 dichloro-5,6-dicyano -1,4- benzoquinone (DDQ) as -acceptor to give highly coloured complex with 1:1 stoichiometr...

The investigation into the ability of a natural coagulant banana peel to treat refinery and petrochemical waste water has been studied. The waste generated from various activities in these industries is usually disposed and promotes environmental degradation. Coagulation method was used in the treatment of the wastewater. Results reveal that turbid...

A simple and sensitive spectrophotometric method is described for the quantitative determination of erythromycin. The method is based on charge transfer complexation reaction of, erythromycin as n-electron donor with 2, 3 dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) as π-acceptor to give highly coloured complex with 1:1 stoichiometric ratio. The col...

A simple and sensitive spectrophotometric method is developed for the assay of niacin. The method is based on charge transfer complexation reaction of niacin as n-electron donor with 2,3-dichloro-5,6-dicyano-1,4-benzoquinone as π-acceptor to form highly coloured charge transfer complex with 1:1 stoichiometry. The coloured product was quantified at...

A Simple and Spectrophotometric method has been developed for the determination of nicotinamide with 2, 3-dichloro-5, 6-dicyano-1, 4-benzoquinone (DDQ). The method is based on charge transfer reaction between nicotinamide and DDQ. The Stoichiometric relationship between nicotinamide and DDQ shows a 2:1 mole ratio. A shift in absorption maxima was n...