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The synthesis, characterization and preliminary antimicrobial studies of some novel Schiff base ligands;  N,N/ - Bis(2-hydroxybenzylidene)-1,4-phenylenediimine(M) and N,N/ - Bis(4-dimethylaminobenzylidene)-1,4-phenylenediimine (N)  were undertaken. It was prepared by the condensation reaction of 1,4-phenylenediamine with... Continue Reading

The effects of temperature, dielectric constant and catalysis in the kinetics of the oxidation –reduction reactions (involving electron transfer) of N-(2-hydroxy-ethyl) ethylenediammine- N’,N’,N’-Triacetatocobalt (II) by Cu2+ cation were determined.  The dielectric constant was decreased from 63.05 to 43.18 and it was found that... Continue Reading

   The potentials of Adansonia digitata root (ADRP) and stem powders (ADSP) and the stem activated carbon (ADSAC) for adsorption of Pb2+, Cd2+, Cu2+ and Co2+ from aqueous solutions were investigated. The activated carbon was prepared via chemical activation using ZnCl2 as the activating agent. Physico-chemical analysis of the adsorbents... Continue Reading

The synthesis of five mono- and five bis-alkynylated derivatives of quinoline-5,8-diones is reported. The intermediate 6,7-dibromoquinoline-5,8-dione was obtained by nitrosation of 8- hydroxyquinoline, followed by reduction and subsequent bromination and oxidation. The coupling reaction of 6,7-dibromoquinoline-5,8-dione via... Continue Reading

The composition and bleaching properties of Nteje clay in comparison with two commercially available adsorbents (activated carbon and fuller’s earth) were investigated to study its competence for use as an alternative to high cost imported adsorbents. The modification of the raw clay sample was carried out by acid activation to enhance... Continue Reading

Physicochemical and bacteriological analyses of borehole water samples were randomly collected from ten boreholes that supply drinking water to various communities of Aninri, Awgu and Oji River Local Government Areas of Enugu, Nigeria. The boreholes were sampled in both dry and rainy seasons. The following physicochemical parameters: pH,... Continue Reading

The pollution of rivers and lakes by n~tural and human activities is causing some concern thc world over because of the problems it poses to mankind's existence 2 (~epple, ,973'; Hakanson, 1974 ; Bryce-jmitl , 1975~; 4 Hodges, 1977 ; Sada et al, 1%a5, Faculty of Law, 6 University of Ibadan 1988 , His Holiness, Pcpe John Paul XI, 1 9w7).... Continue Reading

The azo-ligand, 1,5-dimethyl-2-phenyl-4-[(E)-(2,3,4-trihydroxylphenyl) diazenyl]- 1,2-dihydro-3H-pyrazol-3-one (H3L) and its Zn(II) and Cd(II) complexes have been synthesized and characterized based on stoichiometric, molar conductance, electronic and infra-red spectral studies. The results showed that H3L reacted with the metals in 2:1... Continue Reading

The total alkaloid, tannins contents and antiulcer activity of the extracts from four selected medicinal plants were investigated. The total alkaloids content (TAC) was evaluated according to the chloride colometric method in which atropine was used as standard. While the total tannins content (TTC) was also determined using Folin... Continue Reading

The efficacy of silica obtained from our local sand as a carrier in synthesis of Nickel-Silica catalyst was investigated. Six samples of soil were collected from two different sites (comprising five white coloured samples collected from Iva valley, lower part of Milliken hill, namely: pottery 2 (P2), down iva (DI), run-off iva (ROI),... Continue Reading

The petroleum hydrocarbon composition of sediments from Qua Iboe River Estuary, Ibeno, South-Eastern Nigeria, was studied to determine the levels of these hydrocarbons in the marine environment. Ten sediment sites were sampled using a van veen Grab sampler. Chemical parameter, such as total organic carbon (TOC), was assessed using... Continue Reading

The concentrations of Ni, Mn, Cd, Cu, Zn, Pb and Cr, were determined in some pastas consumed in Nigeria, with a view to providing information on the dietary intakes of heavy metals and exposure of humans to toxic metals. The concentrations of these seven (7) elements were determined by atomic spectrometry after nitric acid/perchloric acid... Continue Reading

Table of Contents Acknowledgement Declaration. Dedication iv Abstract List of Figures yiN List of Tables ix CHAPTER ONE 1 1.1 Background 1 1.2 Problem statement 3 1.3 objectives 3 1.3.1: general objective 3 1.3.2: specific objectives 3 1 .4Justification 4 1.6 Scope of the study 4 1.7 Significance of the study 4 CHAPTER TWO 5 LITERATURE REVIEW 5... Continue Reading

This study focuses on the temporal monitoring and analysis of wastewater from Kira Tocvn Council. The distribution of the chemical constituents major and minor is determined and compared with National Environment Management Authority (NEMA) Standards of wastewater discharge on land and into water bodies. The obtained results indicated... Continue Reading

This study is aimed at determining the concentration of gold in the gold ore in lujinjimubende district. Currently investing in gold mining is taken as a riskyinvestmentbecause people are not sure of the concentration of gold in lujinji and also the depth where gold concentration is high. The results of this research gave the... Continue Reading

A survey of industrial pollution in Anambra state WFS carried out between February A990 and June 1997, The survey showed that Idemili, Onitsha and Nnewi Local Government Areas h3ve the greatest concentration of industries* Some of these industries.: discharqe their wastes into the environment with very little or no tre3tment.... Continue Reading

The total alkaloid, tannins contents and antiulcer activity of the extracts from four selected medicinal plants were investigated. The total alkaloids content (TAC) was evaluated according to the chloride colometric method in which atropine was used as standard. While the total tannins content (TTC) was also determined using Folin... Continue Reading

Zeolite crystals were synthesized by mixing sodium silicate and sodium aluminate to obtain aluminosilicate gel which was further treated hydrothermally to obtain the final product. The zeolite crystals were characterized by x-ray diffraction (XRD) and scanning electron microscopy (SEM). The XRD result identified the synthesized crystals... Continue Reading

Have you ever wondered how your hormones levels affect your growth and development into adulthood and beyond? How about how your bodily systems affect sleep and metabolism? This is all your endocrine system in play. Your endocrine system is responsible for regulating your growth, sexual development, mood, sleep, and numerous other biological... Continue Reading

Aquifer Hydraulic Characteristics and Vulnerability Estimation from Vertical Electrical Sounding: A Case Study of Oru and its Environs, South-Eastern, Nigeria was carried out to delineate the different aquifer units with a view to determine the vulnerability of groundwater in the area. The study area is underlain by the Benin Formation... Continue Reading

Geophysical survey involving electrical resistivity method has been carried out in Erunmu, Oyo state south-western Nigeria with a view to delineate the geoelectric characteristics of the basement complex and evaluate its ground water potential in the area. A total of 7 vertical electrical sounding stations were established within the site... Continue Reading

CHAPTER ONE INTRODUCTION 1.1LOCATION, EXTENT AND ACCESSIBILITY Akanu-Ohofia Area comprises of villages in Ohofia local government area of Abia state. Communities within the studied area include; Akanu, Isi-ugwu, Ndi-uduma, Abia, Ania, Ndiokala, Ndi-orieka, Amankwu and Eziafor (Figure 1). The study area is part of the Southern Anambra Basin... Continue Reading

Petrophysical well logs were integrated in an analysis for the reservoir characterization of C and D wells located in the Offshore Depobelt of the Niger Delta Basin, Nigeria. The study essentially determined reservoir properties such as Lithology, shale volume, Porosity, hydrocarbon saturation and Net-Gross from Well logs with a  view to... Continue Reading

Geology and Water Quality Assessment of the Salt Lake areas of Okpoma and its environs in Yala Local Government Area of Cross River State has been carried out. The study area lies between longitude 08o 361 E to 08o 411 E of the equator and latitude 06o 321 N to 06o 371 N of the meridian respectively. They belong to the Eze-Aku Group of... Continue Reading

Palynological analysis was carried out on twenty (20) ditch cutting samples from a section (1284.73– 1496.57 m) of the Amansiodo-1 well, Anambra Basin, southeastern Nigeria with the aim of determining the age, biozone, and depositional environment of the sediments within the depth interval. The laboratory techniques of digesting... Continue Reading