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
The improvement of the combustion properties of coal and biomass by blending and carbonization was investigated. Proximate and ultimate analysis of coal, sawdust, corn cob and their blends were carried out using ASTM methods. The proximate and ultimate analyses were repeated on the five blends after carbonization at 500o C for one hour.… Continue Reading
Production of carbon black from novel sources like spent automobile tyre, anthracite coal, furnace soot and graphite rod and subsequent use in the production of offset printing inks has been investigated. Carbon black from these sources were obtained by pyrolysis of shredded spent tyre and coal samples at 750-900o C in an electrical… 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 kinetics and mechanisms of the redox reactions of oxidant, m -adipato-di(N,N/ - bis(salicylidene)ethylenediaminatoiron(III),[(Fe-salen)2adi],hereafter denoted as Fe2adi, with the thiols L-cysteine (LSH), thiourea (USH), thioglycolicacid(GSH),2– mercaptobenzothiazole (BTSH) and benzylmercaptan (BSH) have been studied… Continue Reading
The synthesis of N-heteroaryl substituted benzene sulphonamides and evaluation of their biological activities are reported. Synthesis was achieved by the reaction of benzene sulphonyl chloride and substituted amino heterocycle in dry pyridine. The structures of synthesized compounds were assigned by spectroscopic methods. The eight (8)… Continue Reading
The removal of Pb(II) ions from aqueous model solution using zeolite has been investigated under different operational parameters like heavy metal ion concentration, adsorbent amount and particle size. The zeolite used was synthesized and characterized using SEM and XRD analysis. The equilibrium adsorption capacity of zeolite used for… Continue Reading
A simple and sensitive spectrophotometric method for the determination of paracetamol was explored, using zirconium(IV) and vanadium(V) oxides. The method was based on the oxidation of paracetamol by zirconium(IV) and vanadium(V) in alkaline and acidic media respectively. The stoichiometric studies indicated a mole-ratio of 1:1 for the… Continue Reading
Extraction of oil from plants and animals’ source for production of fat liqour to render the leather soft by a sort of lubricating the fibres after tanning is being a practice for long. However, the oils and fats that were formerly used almost exclusively are now becoming scarce and expensive, thus there are need to source for alternative… Continue Reading
The Schiff base ligand, 2-[(E)-[{3--[(2-hydroxybenzylidene)amino]phenyl}imino)methyl]phenol was synthesized by condensing 1,3-diaminobenzene and 2-hydroxybenzaldehyde in absolute ethanol. Its Cr(III) and Cr(VI) complexes were equally synthesized. The ligand was characterized via UV, IR and NMR spectroscopy, whereas the complexes were… Continue Reading
PRODUCTION OF MOSQUITO REPELLENT USING ORANGE PEELS ABSTRACT Mosquito repellents are substances that can be used to repel mosquitoes which are a vector that transmits malaria. A typical example of a mosquito repellent is mosquito coil which drives away mosquito when it is ignited. The smoke that is emitted from burning a mosquito coil contains… Continue Reading
TABLE OF CONTENT CONTENT Title page … Continue Reading
CHAPTER ONE 1.0 INTRODUCTION AND LITERATURE REVIEW Phosphorus is usually present in natural water as phosphate and is an essential element of life, phosphate can come from fertilizers, human or animal wastes, soaps or detergents and industrial waste.[1] When too much phosphorus becomes available, plant grows rapidly.[1] Phosphate that enter a… Continue Reading
TABLE OF CONTENTS Title page ..............................................................................................i Certification page...................................................................................ii Dedication............................................................................................iii… Continue Reading
EXTRACTION OFALKALOIDS FROM THREE NIGERIAN PLANTS, KOLA ACCUMINATA (OJI IGBO), KOLA VERA (OJI HAUSA), AND GAXCINA KOLA (BITTER KOLA). TABLE OF CONTENT Certification - - - - - - - - - i Dedication - - - - - - … Continue Reading
CHAPTER ONE 1.0 INTRODUCTION 1.1 Background of the study Biomass, particularly agricultural residues seem to be one of the most promising energy resources for developing countries (Patomsok, 2008). Rural households and minority of urban dwellers depend solely on fuel woods (charcoal, firewood and sawdust) as their primary sources of energy for the… Continue Reading
C HAPTER ONE 1.0 INTRODUCTION The use of the leaves, stem and bark of the plants for medicinal purposes is an age long practice. Also in the modern times, and among civilized people, the medicinal use of herbs and shrubs in the treatment of so many diseases both physiological and otherwise is an important breakthrough in pharmocognacy.… Continue Reading
CHAPTER ONE INTRODUCTION Aloe vera ( Aloe barbadensis miller) is a perennial plant of Liliacea with turgid green leaves joined at the stem in a rosette pattern, Aloe vera leaves are formed by thick epidermis (skin) covered curticle surrounding the mesophyll, which can be differentiated into chlorenchyma cells and thinner walled cells forming… Continue Reading
EXTRACTION OFALKALOIDS FROM THREE NIGERIAN PLANTS, KOLA ACCUMINATA (OJI IGBO), KOLA VERA (OJI HAUSA), AND GAXCINA KOLA (BITTER KOLA). TABLE OF CONTENT Certification - - - - - - - - - i Dedication - - - - - - … Continue Reading