African Journal of
Pure and Applied Chemistry

  • Abbreviation: Afr. J. Pure Appl. Chem.
  • Language: English
  • ISSN: 1996-0840
  • DOI: 10.5897/AJPAC
  • Start Year: 2007

AJPAC Articles in press

Oxidative Carbon-Carbon Bond Formation Using Nitromethane As A Solvent And A Reagent Via Functionalization Of Heterocyclic Amine

Article in Press

???substituted Heterocyclic amines account for the main structural skeleton for organic synthesis and constitute adaptable pattern found in numerous medicinal and biological compounds of importance. The development of electrochemical anodic oxidation reactions in the synthesis of advanced ?-substituted heterocycles is highly desirable. The main purpose of this research was to ascertain the functionality of oxidation at the...

Author(s):Collins O. Owino, Samuel S. Libendi, Paul M. Guyo

Synthesis of Schiff base from Vanillin and 2-Aminophenol: Characterization and Comparative Anti-Bacterial Study of It’s Mixed Ligand Complexes of Fe (II) and Ni (II)

Article in Press

Vanillin and 2-aminophenol Schiff Base was synthesized in 1:1 mole ratio (HL1). Fe (II) and Ni (II) ions formed complexed with Schiff Base in 1:2. (Fe(HL1)2, Ni(HL1)2) and mixed ligand complexes of 2-aminsophenol with Schiff Base (Fe(HL1) (HL2), Ni(HL1) (HL2)) in 1:1:1 (L-M-L). The complexes were characterized by Solubility, Melting Point, Conductivity, FTIR and UV. The compounds were soluble in Acetone, Methanol,...


Radicals Scavenging Activities and Acetyl-Cholinesterase Inhibition Potentials of Essential Oil and Decoction Water of Hyptis Suaveolens (L.) Poit Growing Wild in South West Nigeria

Article in Press

Chemical inhibition of acetyl-cholinesterase has been the major strategy for the management of nerve-signaling related diseases like Alzheimer’s disease. Limited treatment options have driven the research into extracts from indigenous plants. In this study, the chemical constituents, anti-cholinesterase and radical scavenging potentials of the essential oil and the decoction water of a Nigerian variety of the medicinal...

Author(s):Owokotomo. I. A, Ayeye, M

Synthesis of N-alkyl-3- (1H-benzimidazolyl) -2-chloroquinoline derivatives potential candidates against infectious organisms

Article in Press

In the search for new drugs possessing the activities we have sought to synthesize new quinoline derivatives which constitute a basic heterocyclic support of some drugs such as quinine, chloroquine marketed under the name Nivaquine®, Mefloquine®, used in the treatment of malaria. The objective of this work is to contribute to the synthesis of new derivatives of quinoline. It consists in introducing heterocycles such as...

Author(s):Gbe Gondo Didier DIOMANDE, Sagne Jacques AKPA, Doumade ZON et Ané ADJOU

Isolation, characterization and quantitation of photoactive phases of titanium (IV) oxide in skin-lightening products

Article in Press

Titanium (IV) oxide (TiO2) is used as a physical blocker of ultraviolet (UV) radiation in many skin-care products. Absorption of TiO2 through the skin is likely to interact with viable tissues because UV radiation absorption generates toxic reactive oxygen species such as hydroxyl radicals. Studies on the acute toxicity of TiO2 nanoparticles in mammals indicate that intra-tracheal instillation, intraperitoneal injection...

Author(s):Moses A. Ollengo and Esther W. Nthiga

Adsorption of congo red dye from aqueous solution by modified sugarcane bagasse: Kinetic, isotherm and thermodynamic studies.

Article in Press

The use of large quantities of synthetic dyes in the process industry mainly for colouring products has given rise to aqueous effluents containing high levels of this pollutant. Sugarcane bagasse, a by-product of sugar processing, was modified with benzoyl peroxide and sodium hydroxide independently. The unmodified and modified materials were characterized for their swelling ratio, pH of point zero charge, bulk density...

Author(s):Samuel A. E., Ezebor, F., Muniru, O.S., Magaji, M. B. and Adesanya, O.O

Characterization of divalent metal soaps of Cannabis sativa seed oil.

Article in Press

In this study, the structural characteristics and thermal degradation behaviour of barium, calcium and zinc soaps of hemp seed oil prepared using the metathesis method are reported. Scanning electron micrographs of the metal soaps showed similar plate-like microstructures and are indicative of an orderly packed particulate structure. The thermal decomposition consisted of one single step on the weight loss – temperature...

Author(s):Senem Yetgina, Theresa Egbuchunamb and Felix Okieimenc

Phytochemical Screening And Antimicrobial Activities Of Herbs And Selected Spices Against Staphylococcus Aureus

Article in Press

Phytochemicals are natural bioactive compounds found in plants, which are divided into two groups; primary and secondary compounds based on their functions in plant metabolism. The aim of this study was to evaluate, compare the phytochemicals and antimicrobial activities of spices commonly used in the production of readymade meals. The tests were conducted for nine spice species. Their extracts were tested for their...

Author(s):Solomon Sime Tessema And Alemu Mekonnen Tura

Phytochemical Investigation of the Roots of Rumex nervosus

Article in Press

Rumex nervosus belongs to the family of Polygonaceae, which is traditionally used in Ethiopia to treat various diseases. With the absence of previous scientific report on the roots of the plant, this study was focused on isolation of active compounds of root of Rumex nervosus. Ground root parts of Rumex nervosus were subjected to successively extract with petroleum ether and methanol. The solvent from each extract was...

Author(s):Gashaw Nigussie

Quality Evaluation Of Bottled Water Packaged Within Niger State, Nigeria

Article in Press

Background: In the recent time, there has been proliferation of bottled water in Niger State due to inaccessibility of quality drinking water from other sources. This prevalence has led to the emergence of more entrepreneurs in bottled water production. Thus, this study aimed to evaluate the labeling information, physicochemical, and heavy metals composition of bottled water packaged in different regions of Niger State,...

Author(s):Muhammad Taoheed Bisiriyu, Mustapha Adekomi Ganiyu, Nelson Edache Ogwuche, Abidemi Adedayo Koleola, and Rasaq Bolakale Salau

Kinetics and Mechanism of The Redox Reaction of Hexamethyl pararosanaline Chloride (Crystal Violet) by Permangnate Ions in Aqueous Acidic Medium

Article in Press

Kinetics studies into the redox reaction and mechanism for the reactions of crystal violet (CV+) and MnO4– were carried out in aqueous acidic medium, at [CV+] = 1.6 X 10-5 mol dm-3, [MnO4-] = 8.0 x 10-4 mol dm-3 , [H+] = 2.0 x 10-3 mol dm-3, µ = 1.88 x 10-1 mol dm-3 (NaCl), T = 25.0 ± 1ºC and λmax = 580 nm. The stoichiometric studies showed that one mole of the crystal violet was found to be consumed by two mole...


Physicochemical Analysis and Theoretical Bioethanol Yields of Parthenium hysterophorus and Lantana camara Feedstock

Article in Press

Global interest in lignocellulosic biomass as potential feedstock for conversion into biofuel is growing steadily because of the energy crisis the world faces. Lignocellulosic biomass can be sourced from agricultural residues, woody biomass, or some wasteland weeds. In this study, the physicochemical characteristics and theoretical bioethanol yields of Lantana camara and Parthenium hysterophorus has been determined to...

Author(s):Zewdu Bezu Gemechu, Endale Teju and Birhanu Bayissa

Evaluation of moisture content, total aflatoxin content and mould count in raw and processed groundnut (Arachis hypogaea L.) products in some locations from Benue State – Nigeria

Article in Press

Aflatoxin contamination of groundnut is a major hazard to human and animal health and is one of the major constraints to the groundnut trade. Risks related to human health and declining productivity in livestock after consuming aflatoxin-contaminated feed have led to groundnut importing countries setting standards that allow only extremely low levels of contamination and that are often not achievable by most resource-poor...

Author(s):S. T. Ubwa, K. Asemave, T. R. Atoo, U. J. Ahile, R. L. Tyohemba, S. T. Ahundu

Investigation of the Levels of Nitrite and Nitrate in Soil and Water Samples in Adami Tulu Judo Kombolicha District, Ethiopia

Article in Press

Excessive accumulation of nitrate and nitrite is a major cause of water pollution, air pollution and various health hazards. Hence, it is important to know the amount of these anions in environmental samples. In this study, the levels of nitrate and nitrite were investigated in soil and water in Adami Tulu Judo Kombolicha District, Oromia, Ethiopia. Levels of the anions were determined by UV-Visible spectrophotometer....

Author(s): Eyasu Gebrie Ajebe, Zinabwa Hailu, Temesgen Nurlign

Determination Of Interaction Sites Of Purine And Its Derivatives In Xanthine Oxidase Enzyme

Article in Press

The role of Moco in xanthine oxidase enzyme is to position Mo correctly within the active site, control the redox behavior of the enzymes, allow the enzyme to gain its biological activity, and participate with its pterin ring system in the electron transfer to or from the molybdenum atom. The purpose of the study is to determine the interaction sites of different substrates in the binding pocket amino acid residues at...

Author(s):Temesgen Nurlign Chekol

Selected Heavy Metal Levels in Water and Fish from Winam Gulf in Lake Victoria near Kisumu City, Kenya.

Article in Press

Lake Victoria is the largest freshwater and fishery lake in Africa. Kisumu City, located at the shore of Winam Gulf has industrial activities discharging effluents into the lake with potential of contaminating the lake water with heavy metals. The contribution of these activities to heavy metal loads of lake water and fish from the gulf is not fully quantified. The assessment of the influence of the surrounding...

Author(s):Francis M. Kiema, Philip O. Owuor, Raphael J.A. Kapiyo

A Review on Nanotechnology: Analytical Techniques Use and Applications

Article in Press

The combination of nanotechnology with molecular biology, information technology and instrumentation, is opening the door to a new industrial age. The aim of this review article is to summarize the current knowledge of nanotechnology in synthesizing, identifying and characterization of nanomaterials using analytical techniques. Physical and chemical approach synthesis of nanomaterials befalls challenges in the development...

Author(s):Tassew Belete Bahru, Eyasu Gebrie Ajebe

Extraction and Characterization of Essential Oil from MyrtusCommunis

Article in Press

Myrtuscommunis L. is commonly known as “Ades” in Ethiopia and is a popular evergreen shrub plant grown in many regions of world. Myrtuscommunis essential oils have a potential to be used in pharmaceutical and cosmetic/perfumery industries as well as in aromatherapy and alternative medicines. With such applications, there is a huge demand for Myrtuscommunis essential oils worldwide. Hence, there is a need to improve the...

Author(s):Yohannes Besufekad Setotaw, Mekdes Mulugeta, Abebech Mijena, Delesa Dessisa, Tekalign Demelash, Demitu Kumssa, Birtukan Bassa

Determination of the levels of heavy metals and some physico­chemical parameters in cabbage and irrigation water in selected Woredas of Gurage Zone, Ethiopia

Article in Press

This study involves determination of the levels of heavy metals and some physio-chemical parameters in cabbage and irrigation water in selected Woredas of Gurage Zone, Ethiopia. The heavy metals assessed in this study are Manganese (Mn), Zinc (Zn), Copper (Cu), Chromium (Cr), Nickel (Ni) Cadmium (Cd) and Lead (Pb). The Cabbage (Ethiopian Kale) samples were weighed to determine the fresh weight and dried in an oven at 80 oC...

Author(s):Ashenafi Emiru Teka, Eyasu Gebrie Ajebe , Teshale Assefa Biru

Carbon Nanotube: A Review on Synthesis, Growth Mechanism and Application as a Membrane Filter for fluoride remediation

Article in Press

Carbon Nanotube: A Review on Synthesis, Growth Mechanism and Application as a Membrane Filter for fluoride remediation

Author(s):Bayisa Meka Chufa, H C Ananda Murthy

The Investigation of Spectroscopic Properties of 3-Ethyl-4-(4-cinnamoyloxybenzylidenamino)-4,5-dihydro-1H-1,2,4-triazol-5-one Compound Using B3LYP and HF Basis Sets

Article in Press

In this study, we reported a combined experimental and theoretical study on 3-ethyl-4-(4-cinnamoyloxybenzylidenamino)-4,5-dihydro-1H-1,2,4-triazol-5-one compound. The title compound was prepared and characterized by 1H and 13C NMR and FT-IR spectra. The molecular geometry, gauge including atomic orbital (GIAO), 1H and 13C NMR chemical shift values, vibrational frequencies and HOMO–LUMO analyses properties of the title...

Author(s):Murat Beytur, Haydar Yüksek

Computational adsorption and density functional theory (DFT) studies on the corrosion inhibition potentials of some phenyl-urea derivatives

Article in Press

The inhibition performance of [(4-Hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-phenyl-methyl]-urea and [(4-Hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-(4-methoxy-phenyl)-methyl]-urea were investigated as corrosion inhibitors using density functional theory (DFT) at the B3LYP/6-31+ G(d,p) level of theory. The calculated quantum chemical parameters correlated to the inhibition of efficiency. The molecular descriptors have been analysed...

Author(s):Department of Chemistry, Ahmadu Bello University Zaria, Kaduna State, Nigeria.

Fuel oil as an anthropogenic source of iron, manganese, chromium copper and arsenic at Kingtom Power Plant and environs

Article in Press

People all over the world suffer from certain illnesses such as skin disease, cancer as well as liver, kidney and skin damage. Some of these diseases are believed to be associated with certain trace metal. Trace metals are present in plant and animal cells and tissues as they are necessary part of nutrition and physiology. Ingestion of, or exposure to, excess quantities of these metals is often toxic. However, insufficient...

Author(s):Chemistry Department, Fourah Bay College, University of Sierra Leone, Sierra Leone.

Comparative study of oxidation, acetylation and boric acid treatment with various concentrations of NaOH/alcohol on cold water solubility (CWS), amylopectin and amylose content of starches from cassava, potato and corn

Article in Press

The effect of oxidation, acetylation and boric acid treatment and varying concentrations (30, 40 and 50%) of alcohol-alkaline (NaOH/alcohol) modifications on the cold water solubility (CWS), amylopectin and amylose content of starches extracted from cassava, potato and corn were evaluated and compared. The studies were carried out using the determination of cold water solubility (CWS), amylose-amylopectin content and light...

Author(s):Department of Biochemistry, University of Nigeria, Nsukka, Enugu State, Nigeria.

Effect of mineral systems injected with pyrite on copper and zinc removal from aqueous solution part 1

Article in Press

Mineral systems of kaolinite, montmorillonite, kaolinite and their mixtures injected with pyrite were investigated for copper and zinc removal. This study was related to simulated contaminated waters. Reactivity and removal kinetics were studied at room temperature (23 ± 2°C). The results of the empirical model revealed that, proton coefficient of mineral systems exhibited complex behavior. Kinetic model revealed that...

Author(s):Faculty of Science, Niger Delta University, Wilberforce Island, Nigeria.

Study of physico-chemical and thermodynamic parameters of potassium iodide in Oil-DMF solvent

Article in Press

The physico-chemical properties namely viscosity (η), surface tension (γ), conductance (Κ), molar conductance (μ), and thermodynamic parameters like enthalpy change of activation (ΔH*), entropy change of activation (ΔS*), free energy change of activation (ΔG*), molar heat capacity change at constant volume (ΔCv) and molar heat capacity change at constant pressure (ΔCp) of potassium iodide solutions in varying...

Author(s):Department of Chemistry, University of Karachi, Karachi-, Pakistan

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