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All published articles 998

Investigations of Ferrous Thiamine Complex by Cyclic Voltammetry

Sumaira Khurshid, Sheikh Mohiuddin & Zahida Maqsood · International Research Journal of Pure and Applied Chemistry · 2014

Study of thiamine ferrous complex is carried out by intensive use of cyclic voltammetry. The different mole ratio of ferrous thiamine complexes is assessed. Acidified KCl (1M) solution is used as supporting electrolyte. Mole ratio of complex is established 1:2 (thamine: Ferrous i...

Open access Research Article 10.9734/IRJPAC/2014/10977

Adsorption of Copper by Biochar

A. O. Adeyemo, K. O. Adebowale & B. I. Olu-Owolabi · International Research Journal of Pure and Applied Chemistry · 2014

Aims: To study the possibility of using biochar as an inexpensive sorbent material for the removal of copper ions in aqueous solution. Place of Study: Department of Chemistry, University of Ibadan, Ibadan, Oyo State, Nigeria. Methodology and Results: Batch adsorption studies were...

Open access Research Article 10.9734/IRJPAC/2014/11079

Isolation and Characterization of the Chemical Constituents of the Stem Bark of Parinari polyandra Benth

K. O. Otun, G. A. Olatunji, A. T. Ajiboye & U. M. Badeggi · International Research Journal of Pure and Applied Chemistry · 2014

The young and old stock stem barks of Parinari polyandra Benth. were air-dried, chopped into smaller pieces and cold extracted exhaustively with ethanol. The phytochemical screening of the crude extracts was carried out using standard procedures while the young stem bark crude ex...

Open access Research Article 10.9734/IRJPAC/2014/11267

Effects of CaCO3 and Kaolin Filler Loadings on Curing Rates of Polyurethane Foams

M. B. Dalen, A. Q. Ibrahim, H. M. Adamu & A. A. Nurudeen · International Research Journal of Pure and Applied Chemistry · 2014

Commercial kaolin (Al2Si2O5(OH)4), a clay mineral obtained on the Upper Plateau (Jos, Central Nigeria) was characterized for physical properties such as moisture content (= 1.30%), sieved particle size (= 150µm)  and (Apparent Bulk Density (= 0.40g/cm3) and compared to CaCO3, a r...

Open access Research Article 10.9734/IRJPAC/2014/11156

Analysis of Roadside Dust for Heavy Metal Pollutants in Jimeta/Yola Adamawa State, Nigeria

D. Y. Shinggu · International Research Journal of Pure and Applied Chemistry · 2014

A study of heavy metals in roadside soils is critical in assessing the potential environmental impacts of automobile emission on the soil. This study is aimed at analyzing heavy metal pollutants that may be present in roadside dust samples in Jimeta/ Yola, Adamawa State, Nigeria....

Open access Research Article 10.9734/IRJPAC/2014/9359

Heavy Metals Concentration at Electronic-Waste Dismantling Sites and Dumpsites in Lagos, Nigeria

E. A. Ofudje, S. O. Alayande, G. O. Oladipo, O. D. Williams & O. K. Akiode · International Research Journal of Pure and Applied Chemistry · 2014

The importation and refurbishing of second-hand electrical and electronic equipment (EEE) is a major concern all over the world and Nigeria is not in exception owing to the generation of e-wastes. The assessment of the levels of Pb, Cr, Ni, Cd and Zn in the dust at dismantling si...

Open access Research Article 10.9734/IRJPAC/2014/7694

Cation-Type Dependences of 1H and 29Si MAS NMR Chemical Shifts and Desorption Temperatures of Water Molecules in Faujasite-Type Zeolites

Tomohiro Morita, Hisashi Honda, Tatsuto Katayama, Susumu Tanaka & Shin’ichi Ishimaru · International Research Journal of Pure and Applied Chemistry · 2014

In order to reveal adsorbed states of water molecules on faujasite-type zeolites (FAU) systematically, twenty five kinds of FAU were prepared in this study: Na ions in FAU with Si/Al ratios of 1.0, 1.2, 1.7, 2.4, and 3.5 were exchanged by each Li, K, Rb, and Cs ions. High-resolut...

Open access Research Article 10.9734/IRJPAC/2014/10212

Determination of Concentrations of Heavy Metals in Municipal Dumpsite Soil and Plants at Oke-ogi, Iree, Nigeria

Olayinka O. Olufunmilayo, Adedeji H. Oludare & Dada Oluwatoyin · International Research Journal of Pure and Applied Chemistry · 2014

The study examined the concentration of heavy metals [Cd, Co. Cu, Pb, Ni, Mn, Pb and Zn) in dumpsite soil and waterleaf [Talinum triangulare) growing wildly on Oke-ogi dumpsite, Osun state, Nigeria. Soil samples from different layers [0-15cm, 15-30 cm and 30-45 cm) were collected...

Open access Research Article 10.9734/IRJPAC/2014/11063

Thermal Properties and Structures of CsHSO4 and CsDSO4 Crystals

Takanori Fukami, Shuta Tahara & Keiko Nakasone · International Research Journal of Pure and Applied Chemistry · 2014

Differential scanning calorimetry, thermogravimetric-differential thermal analysis, and X-ray diffraction measurements were performed on cesium hydrogen sulfate (CsHSO4) and deuterated CsDSO4 crystals. The proton and deuterated compounds were confirmed to exhibit the superionic p...

Open access Research Article 10.9734/IRJPAC/2014/11331

Arsenic (III) Removal from Real-Life Groundwater by Adsorption on Neem Bark (Azadirachta indica)

Tasrina R. Choudhury, M. N. Amin, S. B. Quraishi & A. I. Mustafa · International Research Journal of Pure and Applied Chemistry · 2014

The adsorption characteristics of arsenic on neem bark, a low-cost natural adsorbent, were studied in the laboratory scale using real-life sample. Neem bark has tremendous potential as a remediation material for the removal of arsenic from groundwater. The present work investigat...

Open access Research Article 10.9734/IRJPAC/2014/2713

Development and Validation of Stability Indicating HPLC Method for Simultaneous Determination of Antidiabetic Drugs Metformin Hydrochloride and Glyburide in Tablets

Safwan Ashour, Amir Alhaj Sakur & Manar Kudemati · International Research Journal of Pure and Applied Chemistry · 2014

Aim: To develop and validate a stability indicating HPLC method for simultaneous estimation of metformin hydrochloride (MET) and glyburide (GLY) in their combined drug product. Study Design: All variables were studied to optimize the chromatographic conditions. Place and Duration...

Open access Research Article 10.9734/IRJPAC/2014/10301

Reversed Phase HPLC-UV Quantitation of BHA, BHT and TBHQ in Food Items Sold in Bindura Supermarkets, Zimbabwe

D. Shasha, C. Magogo & P. Dzomba · International Research Journal of Pure and Applied Chemistry · 2014

Aims: To determine levels of Butylated hydroxyanisole (BHA), Butylated hydroxytoluene (BHT), Tertiary butyl hydroquinone (TBHQ) in food items sold in supermarkets in Bindura town, Zimbabwe. Study Design: Reversed phase HPLC-UV quantitation. Place and Duration of Study: Department...

Open access Research Article 10.9734/IRJPAC/2014/10419

Development and Validation of HPLC-UV Method for Determination of Bovine Serum Albumin and Myoglobin Proteins

Fuad Al-Rimawi · International Research Journal of Pure and Applied Chemistry · 2014

A simple HPLC with UV detection method is developed and validated for determination of Bovine Serum Albumin and Myoglobin proteins in a standard solution of the two protein as well as in a plasma spiked with theses two proteins. Separation was achieved on a reversed-phase C18, 5....

Open access Research Article 10.9734/IRJPAC/2014/9391

Removal of Colour from Textile Effluent by Adsorption Using Low Cost Adsorbents

C. R. Ramakrishnaiah & D. N. Arpitha · International Research Journal of Pure and Applied Chemistry · 2014

Aims: The present study was aimed to investigate the adsorption capacity of Granular activated carbon (GAC) of coconut shell and coal ash for acidic dye. Methodology: Acid orange 7 dye is used as an adsorbate for the present study. Operating parameters such as pH, effective dosag...

Open access Research Article 10.9734/IRJPAC/2014/5772

Application of the Level Set Method in Three-Dimensional Simulations of the Profile Evolution

Branislav Radjenović, Marija Radmilović-Radjenović & Petar Beličev · International Research Journal of Pure and Applied Chemistry · 2014

In this paper, the angular dependence of the etching rate is applied in the three-dimensional simulations of the profile evolution during etching process. Etching rates are determined from the silicon symmetry properties by the interpolation technique using experimentally obtaine...

Open access Research Article 10.9734/IRJPAC/2014/8704