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All published articles 1032

Spectrophotometric Study of Oxidation Kinetics and Mechanism of Losartan Potassium Using N-chlorosuccinimide

S. Malini, Kalyan Raj, N. Nanda & J. P. Shubha · International Research Journal of Pure and Applied Chemistry · 2015

The kinetics of oxidation of Losartan Potassium [LP] by N-Chlorosuccinimide [NCS] in HCl medium is studied spectrophotometrically at 205 nm at 298 K. The reaction rate shows fractional order dependence on [LP], [HCl] and first order dependence on [NCS]. The reaction rate also sho...

Open access Research Article 10.9734/IRJPAC/2015/18332

Degradation of Some Resistant Organic Compounds during Pressure Decomposition with Nitric Acid – Potassium Chlorate Reagent Solution

M. Sager & F. Hammerschmidt · International Research Journal of Pure and Applied Chemistry · 2015

In a mixture of nitric acid and chloric acid, nitrate has been proven to be the oxidizing agent for the organic matrix to be digested. White precipitates obtained occasionally after microwave-assisted pressure digestion with potassium chlorate in dilute nitric acid solution, have...

Open access Research Article 10.9734/IRJPAC/2015/18714

Kinetic Spectrophotmetric Method for Quantitation of Rizatriptan Benzoate in Pharmaceutical Formulations

S. Malini, Kalyan Raj, M. A. Veena & N. Nanda · International Research Journal of Pure and Applied Chemistry · 2015

A simple, sensitive and accurate kinetic spectrophotometric method for the determination of Rizatriptan Benzoate in pure and dosage form is described. The method is based on spectro-photometrically monitoring the oxidation of the drug by a known excess of Chloramine-B in HCl medi...

Open access Research Article 10.9734/IRJPAC/2015/17935

Pyrolytical Sifting of Poly (styrene-co-methyl methacrylate) Blended with Stannic Chloride: An Investigation Engaging IR and Py-GC-MS Techniques

M. Arshad · International Research Journal of Pure and Applied Chemistry · 2015

Pyrolytic study of copolymer, i. e., P(S-co-MMA) blended with SnCl4 was performed using inert atmosphere. Five different proportions of polymer-additive blends (additive ratio from 2.5% to 12.5%) were formulated using a common solvent, i. e., acetone. Thermal degradations proceed...

Open access Research Article 10.9734/IRJPAC/2015/18689

Some Molecular Properties and Reaction Mechanism of Synthesized Isatin Thiosemicarbazone and Its Zinc(II) and Nickel(II) Complexes

Fatma Kandemirli, Can Dogan Vurdu, Murat Saracoglu, Yusuf Akkaya & Muhammet Serdar Çavuş · International Research Journal of Pure and Applied Chemistry · 2015

The aim of this study is to 1H-Indole-2,3-dione 3-[N-(4-fluorophenyl)-thiosemicarbazone and its zinc(II) and nickel(II) complexes. The structures of the synthesized compounds were confirmed by spectral data and elemental analysis. They were optimized by B3LYP theory with differen...

Open access Research Article 10.9734/IRJPAC/2015/17626

Assay of Heavy Metals in Water Hyacinth (Eichhornia crassipes) Growing in River Benue, Nigeria and Its Safety as Food

Lami A. Nnamonu, Ogidi A. Ogidi & Ishaq S. Eneji · International Research Journal of Pure and Applied Chemistry · 2015

Laboratory tests have established that some aquatic plants are heavy metal hyper-accumulators. To estimate the extent of this phenomenon on the field, an assessment of heavy metals (Fe, Mn, Zn, Cu, Cd, Cr, and Pb) content of water hyacinth (Eichhornia crassipes) freely growing in...

Open access Research Article 10.9734/IRJPAC/2015/18762

Polar Diels-Alder Reactions Using Heterocycles as Electrophiles. Influence of Microwave Irradiation

María N. Kneeteman, Anna F. López Baena, Claudia Della Rosa & Pedro M. E. Mancini · International Research Journal of Pure and Applied Chemistry · 2015

In this work we studied a series of polar Diels-Alder reactions using different heterocycles derivatives acting as electrophiles joint to dienes of different nucleophilicity, analyzing the effect of the microwave irradiation in these processes. We employ the technique in two cond...

Open access Research Article 10.9734/IRJPAC/2015/18867

Degradation of Methylene Blue Using Synthesized Nanostructured CuO with High Specific Surface Area through Catalytic Oxidation

Amine El Farrouji, Abderrahim Chihab Eddine, Soumaya Elamal Bouzit, Brahim Boualy, Ahmad Mehdi, Larbi El Firdoussi & Mustapha Ait Ali · International Research Journal of Pure and Applied Chemistry · 2015

Nanostructured CuO (CuO Nst) with specific surface area of 144.473 m2/g has been successfully synthesized via a facile solution-phase method at room temperature. As prepared CuO was characterized using x-ray diffraction (XRD), Brunauer–Emmett–Teller (BET) and transmission electro...

Open access Research Article 10.9734/IRJPAC/2015/18057

Development Studies of Biodegradable Pressure Sensitive Adhesives and Fiber Reinforced Polyester Composites from Castor Oil

J. Shakina & A. Muthuvinothini · International Research Journal of Pure and Applied Chemistry · 2015

The potential use of castor oil in preparation of novel biodegradable polymeric pressure sensitive adhesives and fiber reinforced polyester composites was investigated. A biodegradable oligomeric fumarated resin was prepared by the insitu hydroxylation of castor oil followed by m...

Open access Research Article 10.9734/IRJPAC/2015/17785

Determinatiion of Organochlorine Pesticides Residue in Fish, Water and Sediment in Lake Geriyo Adamawa State Nigeria

D. Y. Shinggu, O. N. Maitera & J. T. Barminas · International Research Journal of Pure and Applied Chemistry · 2015

Pesticides usage in agricultural fields to control pests is extremely toxic to non-target organisms like fish and affects fish health through impairment of metabolism, sometimes leading to mortality. Present study was carried out to determine the level of organochlorine pesticide...

Open access Research Article 10.9734/IRJPAC/2015/17100

Cyclic Voltammetric Study of Clarithromycin Using Gold Electrode

Atya Hassan, S. Azhar Ali & Mahboob Muhammad · International Research Journal of Pure and Applied Chemistry · 2015

Clarithromycin is biologically active compound which is belonging to the class of antifungal compound. This is used for the treatment of HIV patients. In present study the electrochemical parameters of clarithromycin has been carried out through cyclic voltammetry technique. Thes...

Open access Research Article 10.9734/IRJPAC/2015/18141

Application of Pollution Indices for the Assessment of Heavy Metal Pollution in Flood Impacted Soil

A. K. Inengite, C. Y. Abasi & C. Walter · International Research Journal of Pure and Applied Chemistry · 2015

The flood in 2012, which was recorded as the most devastating in the past 40 years in Nigeria, that caused colossal loss in material wealth, could also be a source of heavy metal pollution, especially at the lower reaches of the flood where deposition of flood transported materia...

Open access Research Article 10.9734/IRJPAC/2015/17859

Comparative Study on Removal of Fluoride from Groundwater by Natural and Modified Bagasse Carbon of Sugarcane

Sudhanshu Kanaujia, Bharat Singh & Sanjay Kumar Singh · International Research Journal of Pure and Applied Chemistry · 2015

Aim: To design and develop a novel, cost effective strategy for fluoride removal, applicable to rural areas of developing countries. Study Design: Laboratory analysis for different parameters. Place and Duration of Study: Department of Chemistry, University of Allahabad and Depar...

Open access Research Article 10.9734/IRJPAC/2015/17965

Fast Room Temperature Solution-phase Approach for Selective Synthesis of Nanostructured Cu(OH)2, Cu2O and CuO

Soumaya Elamal Bouzit, Brahim Boualy, Larbi El Firdoussi, Ahmad Mehdi, Abdelkader Outzourhit & Mustapha Ait Ali · International Research Journal of Pure and Applied Chemistry · 2015

A simple room-temperature solution-phase and efficient method for the selective preparation of nanostructured copper hydroxide (Cu(OH)2), copper oxide (II) CuO or Cuprous oxide (Cu2O) from a Cu2+ solution was developed. Mono-disperse cubic Cu2O were obtained by sodium hydroxide a...

Open access Research Article 10.9734/IRJPAC/2015/17920