Skip to content

All published articles 1032

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

New Heat-Proof Methylphenylsiloxane Resins and High Temperature Resisting Enamels on Their Basis

O. G. Ryzhova, A. M. Kontorov, A. N. Polivanov, R. S. Mirgazitova & A. I. Katanaev · International Research Journal of Pure and Applied Chemistry · 2014

New heat resistant methylphenylsiloxane resins produced by methyltriethoxysilane and oligophenylsilsesquioxane acidolysis were investigated. The synthesized resins are characterized by narrow molecular-mass distribution, higher thermal and thermal oxidative stability, reduced gel...

Open access Research Article 10.9734/IRJPAC/2014/7257

Separation of Palmitic and Palmitoleic Acid and their FAMEs using Transition Metal Salts

Sayali Kulkarni & Sandun Fernando · International Research Journal of Pure and Applied Chemistry · 2014

Fatty acids (FAs) play an important role in physiological functions. Hence, separation and isolation of FAs is of great industrial importance. With the intension of finding out effective means of separating different forms of lipid constituents, two studies were carried out. In t...

Open access Research Article 10.9734/IRJPAC/2014/9869

RP-HPLC Determination of Benzoic Acid in Samples of Children Food Distributed in Aden-Yemen

A. M. Saeedan, S. Kh. Bamoteref & M. A. Algahri · International Research Journal of Pure and Applied Chemistry · 2014

Reverse phase high-performance liquid chromatographic method that allows the determination of the preservative benzoic acid is described. Separations were affected by using an initial mobile phase of methanol–acetate buffer (pH 4.4), (35:65). Separation of benzoic acid is achieve...

Open access Research Article 10.9734/IRJPAC/2014/8720

Synthesis of NiO Nanoparticles by Water-in-oil Microemulsion Technique

Prakash Palanisamy & Ashok M. Raichur · International Research Journal of Pure and Applied Chemistry · 2014

NiO nanoparticles were synthesized by water-in-oil microemulsion technique using Aerosol-OT as a surfactant. The study aims to understand the nanoparticle size and distribution synthesized with the surfactant and co-precipitated without surfactant. Nanoparticles were synthesized...

Open access Research Article 10.9734/IRJPAC/2014/8538

Distribution Pattern of the Heavy Metals: Pb, Zn, Cd and Cu in Roadside Soils of Maiduguri Metropolis, Borno State Nigeria

S. T. Garba, I. Ahmed, J. C. Akan & B. A. Dauda · International Research Journal of Pure and Applied Chemistry · 2014

In this research work the level of the metals: Pb, Cd, Zn, and Cu were determined in soil samples collected within Maiduguri Metropolis. Samples were collected from places of high anthropogenic activity such as automobile maintenance workshop (AMW), Car park or Bus stops (CP), an...

Open access Research Article 10.9734/IRJPAC/2014/9924

A Rapid Spectrophotometric Method for the Determination of Trace Level Silver Using 1, 5-diphenylthiocarbazone in Aqueous Micellar Solutions

M. Jamaluddin Ahmed & Syeda Rahimon Naher · International Research Journal of Pure and Applied Chemistry · 2014

The very sensitive, fairly selective direct spectrophotometric method is presented for the rapid determination of silver at ultra-trace level using1, 5-diphenylthiocarbazone (dithizone) as a new micellar spectrophotometric reagent ( max= 495 nm) in a slightly acidic (0.1-1.0 M H2...

Open access Research Article 10.9734/IRJPAC/2014/8157

Isolation, Structural Elucidation and Anti-Lipid Peroxidation Activity of 3-(5-Hydroxy-2-(4-Hydroxyphenyl)-4-Methyl-Chromen-3-Yl) Propanoic Acid from the Stem Bark of Brachystegia eurycoma Harms

O. U. Igwe & J. O. Echeme · International Research Journal of Pure and Applied Chemistry · 2014

Aim: To isolate, characterize and ascertain the anti-lipid peroxidation activity of a chromene propanoic acid from the stem bark of Brachystegia eurycoma Harms. Study Design: The study was designed to search, isolate and elucidate the structure of a novel compound and then test i...

Open access Research Article 10.9734/IRJPAC/2014/8594

Characterization of Bioactive Sesquiterpenes, Organic Acids and Their Derivatives from the Leaves of Psidium guajava Linn

Okenwa U. Igwe & T. Abii · International Research Journal of Pure and Applied Chemistry · 2014

The isopropanolic extract of the leaves of Psidium guajava Linn was analyzed by Gas chromatography-mass spectrometry (GC-MS). Fourteen different phytochemical compounds have been characterized, including 1, 3, 3-trimethyl-2-oxabicyclo [2.2.2] octane, (2.06%), 4, 11, 11-trimethyl-...

Open access Research Article 10.9734/IRJPAC/2014/8592

Physico-chemical Quality of Drinking Water in New Bussa, Niger State, Nigeria

J. C. Nnaji & S. Omotugba · International Research Journal of Pure and Applied Chemistry · 2014

The study assesses the physico-chemical parameters and metal concentrations in drinking water from different sources in New Bussa, Niger State, North Central Nigeria. Triplicate Water samples were collected from 12 sampling points located all over the town including a well, boreh...

Open access Research Article 10.9734/IRJPAC/2014/7289

The Electrical Breakdown Characteristics of the Water Vapor in Micrometer Gap Sizes

Branislav Radjenović, Marija Radmilović-Radjenović, Š. Matejčik, M. Klas & P. Beličev · International Research Journal of Pure and Applied Chemistry · 2014

The liquid water-metal interface and the liquid water-gas interface, both play an important role in the initiation and the development of the electrical discharge in the gas bubbles. Evidence from the environmental application studies supports the strong dependence of the dischar...

Open access Research Article 10.9734/IRJPAC/2014/8550