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All published articles 998

Recent Advances on the Synthesis, Reactions and Evaluation of the Pharmacological Properties of Quinoxaline, Quinoxaline-2-One and Quinoxaline-2,3-Dione

Festus O. Taiwo, David A. Akinpelu & Craig A. Obafemi · International Research Journal of Pure and Applied Chemistry · 2021

The review article attempts to give recent advances on quinoxaline and its derivatives. Some pathways to the synthesis of quinoxaline, quinoxaline-2-one and quinoxaline-2,3-dione were reported using simple reactive quinoxaline synthon. In addition, the reactions, biological and t...

Open access Research Article 10.9734/irjpac/2021/v22i830427

Quantative STRUCTURE Activity Relationship (QSAR) Study of a Series of Molecules Derived from 2,3-dihydro-1H- perimidine having Activity against Protein Tyrosine Phosphatase 1B

Tuo Nanou Tiéba, Dembélé Georges Stéphane, Soro Doh, Konate Bibata, Kodjo Charles Guillaume & ZIAO Nahossé · International Research Journal of Pure and Applied Chemistry · 2021

In order to study the Quantitative Structure Activity Relationship (QSAR) against protein tyrosine phosphatase 1B and descriptors, we used a series of fourteen (14) molecules derived from perimidine. The compounds were optimized at the computational level B3LYP / 6-31 G (d, p), t...

Open access Research Article 10.9734/irjpac/2021/v22i830426

Geochemical Baseline and Contamination Level Assessment of Antimony (Sb) in Sediment around Agbaou Gold Mine, Côte d’Ivoire

Kakou Charles Kinimo, Ahbeauriet Ahmed Ouattara, N’Guessan Louis Berenger Kouassi, Koffi Pierre dit Adama N’goran & Koffi Marcellin Yao · International Research Journal of Pure and Applied Chemistry · 2021

Agbaou is one of the most recent gold mine exploitation sites in Côte d’Ivoire. Little studies are discussed on the geochemical baseline concentration of trace metals in the wetland sediments around Agbaou gold mine. The main objectives of this study were to establish geochemical...

Open access Research Article 10.9734/irjpac/2021/v22i830424

Inhibition Effect of Atenolol on Copper Corrosion in 1M HNO3: Experimental Study and DFT

Ehouman Ahissan Donatien, Bamba Kafoumba, Kogbi Guy Roland, Bamba Amara, KOUAKOU Adjoumani Rodrigue & Fatogoma Diarrassouba · International Research Journal of Pure and Applied Chemistry · 2021

Atenolol was examined as a copper corrosion inhibitor in 1M nitric acid solution using the mass loss technique and quantum chemical studies, based on density functional theory (DFT) at the B3LYP level with the base 6-311G (d,p). The inhibitory efficiency of the molecule increases...

Open access Research Article 10.9734/irjpac/2021/v22i830423

Degradation of Remazol Black dye from Aqueous Solution by Heterogeneous NH3(MoO3)3/H2O2 System

Kouakou Yao Urbain, Kambire Ollo, Gnonsoro Urbain Paul, Eroi N’goran Sévérin & TROKOUREY Albert · International Research Journal of Pure and Applied Chemistry · 2021

Aims: The pollution of the environment by organic dyes in water is a matter of great concern. Wastewater containing dyes is difficult to treat by conventional wastewater treatment methods such as coagulation, ozonation, biological treatment, etc. This is why the implementation of...

Open access Research Article 10.9734/irjpac/2021/v22i730421

Suggestion Petroleum Coke from Iraq Oil Mix. (T-21A+T-5) & PF2 as Alternative Fuel for Cement and Metallurgy

Sherwan Mohammad Simo, Salah Aldin Naman, Kanaan Ramadan Ahmed, Akhmetov Arslan Faritovich & Lapshin Igor Gennadievich · International Research Journal of Pure and Applied Chemistry · 2021

The feasibility of utilizing petroleum coke as an alternative fuel for cement kilns and other industries was suggesting. The feedstock using in this study are mixture (T-21A+T-5) Tawke and Shekhan PF2 AT residues were obtained from two Iraqi-Kurdistan crude oils by removing disti...

Open access Research Article 10.9734/irjpac/2021/v22i730419

Identification of Five Acylated Anthocyanins and Determination of Antioxidant Contents of Total Extracts of a Purple-Fleshed Ipomoea batatas L. Variety Grown in Burkina Faso

Dominique Saga Kaboré, Adama Héma, Elie Kabré, Raoul Bazié, Abdoul Karim Sakira, Moumouni Koala, Paul-André Koussao Somé, Eloi Pale, Touridomon Issa Somé & Pierre Duez · International Research Journal of Pure and Applied Chemistry · 2021

Anthocyanins are bioactive compounds, which thanks to their anti-free radical properties, can protect the human body against oxidative stress. The latter can cause many diseases, such as cancer, aging. The extract of the green cap purple variety of the sweet potato (Ipomoea batat...

Open access Research Article 10.9734/irjpac/2021/v22i730420

Study of Water Quality of the Ebrié Lagoon and Proposal of Toxin Structures in Relation to Algal Efflorescences

MEL Hayo Vianney, OUFFOUE Koffi Sébastien, Bamba Kafoumba, ZOAKOUMA Roger Simplice Pépin, DIABAGATE Dangui, ZIAO Nahossé & Ouattara Lassiné · International Research Journal of Pure and Applied Chemistry · 2021

Aims: The aim of this work is to know the interrelationships of the physicochemical parameters likely to explain algal blooms and to identify the potential structures of molecules that can be secreted in an Ivorian lagoon environment: the Ebrié lagoon. Methodology: Nine stations,...

Open access Research Article 10.9734/irjpac/2021/v22i730417

QSPR/QSAR Modelling of the Antioxidant Properties of Some Flavonoids

R. Chabi Doco, M. T. A. Kpota Houngue, Urbain A. Kuevi & Y. G. S. Atohoun · International Research Journal of Pure and Applied Chemistry · 2021

Several methods exist when seeking to experimentally evaluate the antioxidant properties of a natural bioactive substance. In the case of flavonoids, the methods used are mainly based on the experimental determination of the percentage of inhibition (IC50) or the redox potential...

Open access Research Article 10.9734/irjpac/2021/v22i730418

Concentration effect of Sodium Chloride Salt on Benzoic Acid Solubility and Dissociation into Water at 298 K Temperature

Shiv Prakash Mishra · International Research Journal of Pure and Applied Chemistry · 2021

In article, we have been reported the study of a concentration effect of sodium chloride (NaCl) salt on benzoic acid solubility and its dissociation in water at 298 K temperature. At this temperature the benzoic acid solubility into water and their dissociation value for six samp...

Open access Research Article 10.9734/irjpac/2021/v22i630416

Determination of the Mechanism of Nucleophilic Reaction of Fenitrothion Using Substituted Phenoxide Nucleophiles in Aqueous Media

E. G. Amadi, C. I. Egwuatu, C. U. Okoro, F. O. Obumselu & M. U. Onuoha · International Research Journal of Pure and Applied Chemistry · 2021

The mechanism of the nucleophilic displacement reaction at the phosphorus centre of organophosphates was determined. Phenoxide nucleophiles were reacted with fenitrothion (O,O-dimethyl O-(3-methyl-4-nitrophenyl) phosphorothioate) in water at 25oC and pseudo-first order rate const...

Open access Research Article 10.9734/irjpac/2021/v22i630415

Removal of Arsenic from Simulated Groundwater using Calcined Shale as the Adsorbent

N’Da Akoua Alice Koua-Koffi, Lassina Sandotin Coulibaly, Drissa Sangare & Lacina Coulibaly · International Research Journal of Pure and Applied Chemistry · 2021

Well water intended for human consumption in the Akouédo area (Ivory Coast) contained arsenic at a concentration average above 0.01 mg/L, WHO guideline value. The shale was used as an adsorbent for the removal of arsenic from these waters. This shale was collected in Lomo Nord in...

Open access Research Article 10.9734/irjpac/2021/v22i630414

The Role of Pulmonary Surfactant in COVID-19 Understanding

Zaineb O. Ettarhouni & Aysha B. Mezoughi · International Research Journal of Pure and Applied Chemistry · 2021

Background: In Covid-19 the virus infects the respiratory tract in human. When lung tissue becomes diseased, the walls and lining of the alveoli and capillaries are damaged. At this point lung compliance and ventilation decrease. Pulmonary surfactant that is produced and disperse...

Open access Research Article 10.9734/irjpac/2021/v22i630413

Green Atomic Absorption Spectroscopic Methods for the Determination of Rabeprazole Sodium and Fluvastatin Sodium in Pure and Pharmaceutical Dosage Forms

Miranda F. Kamal, Samir Morshedy, Dina A. Saad & Marwa S. Moneeb · International Research Journal of Pure and Applied Chemistry · 2021

Aims: Novel green analytical methods have been proposed for the assay of Rabeprazole sodium and Fluvastatin sodium in their pure and formulated dosage forms. Study Design: The methods determine each drug through the estimation of its sodium content, using Flame Atomic Absorption...

Open access Research Article 10.9734/irjpac/2021/v22i630412

Speciation of Manganese in Natural Waters Using Differential Pulse Stripping Voltammetry in Correlation with Physico-chemical Parameters

Indira Šestan, Amra Odobašić, Almir Šestan, Amra Bratovčić & Melisa Ahmetović · International Research Journal of Pure and Applied Chemistry · 2021

To understand the bio-geochemical distribution, activities and environmental consequences of heavy metals, it is very important to know their physico-chemical form and the conditions under which the transformation from one form to another occurs. The bioavailability of heavy meta...

Open access Research Article 10.9734/irjpac/2021/v22i630411