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All published articles 484

Synthesis and Characterization of Barium-Iron Oxide Based Neodymium, Gadolinium and Praseodymium Doped Ceramic Materials

Arda Aytimur, Serhat Koçyiğit & Ibrahim Uslu · Asian Journal of Chemical Sciences · 2021

Neodymium, gadolinium, and praseodymium doped barium-iron oxide ceramic materials were synthesized by polymeric precursor method. No carbon contents or the moisture was observed in infrared spectra of the ceramics. Neodymium and gadolinium doped ceramics were crystallized in cubi...

Open access Research Article 10.9734/ajocs/2021/v10i419105

Chemical and Medicinal Properties of Rauwolfia vomitoria (AFZEL) Harvested from the South Eastern Nigeria

Iwu Irenus Chinonye, Chinonye Chijioke, C. Samuel Iwuji, Obiagwu Ifeoma, Uchenna Onu Lynda, Ukaoma Adanma Augusta, Chijioke-Okere Maureen & Ezekoye. Miracle Oluchukwu · Asian Journal of Chemical Sciences · 2021

Aim: This work was carried out to evaluate the chemical constituents of the leaf of Rauwolfia vomitoria and to determine the activities of the extract on some selected human pathogens Study Design: The study was designed to characterize the compounds in the extract and to determi...

Open access Research Article 10.9734/ajocs/2021/v10i419103

Evaluation of Major and Trace Elements Present in Extracted Humic Acid from Bog Peat

K. Gmeling, T. Kocsis, J. Osan, Z. Kis, M. A. Pocsai, K. Tokesi, I. F. Barna & Gy. Padi · Asian Journal of Chemical Sciences · 2021

The human consumption of humic acid is increasingly relevant therefore the knowledge of exact composition is essential. To make a step in that direction we present gap filling results obtained from three different element analytical investigations of humic acid extracted from fen...

Open access Research Article 10.9734/ajocs/2021/v10i419102

Research Progress in the Application of Artificial Neural Networks in Catalyst Optimization

Zhiqiang Liu & Wentao Zhou · Asian Journal of Chemical Sciences · 2021

The catalyst can speed up the chemical reaction and increase the selectivity of the target product, playing an important role in the chemical industry. By improving the performance of the catalyst, the economic benefits can be greatly improved. Artificial Neural Network (ANN), as...

Open access Research Article 10.9734/ajocs/2021/v10i419101

Analysis of Pollution Levels of Heavy Elements Using Fractionation Pattern of Street Soils of Langtang North, Plateau State, Nigeria

Lungfa Collins Wuyep, U. F. Hassan, A. A. Mahmoud, T. M. Gudam, M. Siman, Lumi Zakka & Habila Yusuf Thomas · Asian Journal of Chemical Sciences · 2021

Soil Pollution is a serious environmental challenge around the world today. Anthropogenic activities and population explosion have continued to pose great danger to our environment most especially land resources which are fixed. It is against this backdrop that this study assesse...

Open access Research Article 10.9734/ajocs/2021/v10i419100

A Review on Synthesis and Biological Activity of Curcumin and Curcumin Derivatives

. RinaIkhar, Prafulla Sabale & Pravin Kadam · Asian Journal of Chemical Sciences · 2021

Curcumin is a common polyphenolic composite and is the main chemical component of Curcuma longa linn.commonlyknown as turmeric. It is a well-known natural herbal herb traditionally utilized as a flavoring and coloring agent in Indian cooking. Curcumin chemically is diferuloyl met...

Open access Research Article 10.9734/ajocs/2021/v10i419099

An Overview of Chemistry Teaching Transformation during COVID-19 Pandemic: An Experience from University of Botswana

Girija S. Singh · Asian Journal of Chemical Sciences · 2021

COVID-19-related disruption in teaching in the University of Botswana led the school to prepare new strategies for running classes and to design innovative way of instruction.  The most notable change was to replace face-to-face lectures with online teaching at least partially (b...

Open access Research Article 10.9734/ajocs/2021/v10i419097

Development and Validation of HPTLC-Densitometric Method Compared to Titrimetric Method for Determination of L-ascorbic Acid in Citrus Fruits

Chodaton Zinsou Marthe Dominique, Houngbeme Gouton Alban, Ganfon Habib, Ableto Mathias, Gbenou Joachim Djimon & Gbaguidi Fernand · Asian Journal of Chemical Sciences · 2021

Aims: The aim of this study is to develop and validate an efficient method for the specific determination of L-ascorbic acid in citrus fruits and to compare it with a usual method, method using 2,6-dichlorophenolindophenol Methodology: The research for a specific method for deter...

Open access Research Article 10.9734/ajocs/2021/v10i319096

Polyvinyl Butyral Synthesis Process Based on Deep Eutectic Solvent as a Catalyst

Po Li, Weilan Xue, Zuoxiang Zeng, Li Sun & Yu Bai · Asian Journal of Chemical Sciences · 2021

Polyvinyl butyral (PVB) was prepared by the condensation reaction of polyvinyl alcohol (PVA) with n-butyraldehyde using a catalyst which is a kind of deep eutectic solvent (DES) made of dodecyltrimethylammonium chloride and p-toluenesulfonic acid. The raw materials and products w...

Open access Research Article 10.9734/ajocs/2021/v10i319095

Characteristics of Effluent from Formic Acid and Sodium Hydroxide Pulping of Kenaf Stem

Jane Adamma Chukwudebelu & Jonah Agunwamba · Asian Journal of Chemical Sciences · 2021

The pulp and paper industry is considered as one of the major potential sources of pollution in the environment and a consumer of wood. Environmental effects have been attributed to chemicals introduced during the manufacturing process. This paper investigated the influence of co...

Open access Research Article 10.9734/ajocs/2021/v10i319093

Exploring the Additive Effects of Aluminium and Potassium Sulfates in Enhancing the Charge Cycle of Lead Acid Batteries

Chijioke Elijah Onu, Nnabundo Nwabunwane Musei & Philomena Kanwulia Igbokwe · Asian Journal of Chemical Sciences · 2021

The adoption of aluminium sulfate and potassium sulfate as electrolyte additives were investigated to determine the possibility of enhancing the charge cycle of 2V/ 20AH lead acid battery with reference to the conventional dilute sulfuric acid electrolyte. The duration and effici...

Open access Research Article 10.9734/ajocs/2021/v10i319092

Effect of Incorporation of Potash from Ficus carica Fruit Peel Waste into Potash (Nikkih) from Plantain Peel Waste as Emulsifiers on the Physico-Chemical, Functional Properties, and Acceptability of Yellow Achu Soup

Pride Ndasi Ngwasiri, Beng Ikongefuze Ekuh, Noumo Thierry Ngangmou, Dobgima John Fonmboh, Buhnyuy Ngong Christian, Ngwa Martin Ngwabie, Martin Benoit Ngassoum & Ejoh Richard Aba · Asian Journal of Chemical Sciences · 2021

Yellow Achu soup used to eat achu is an emulsion composed primarily of red palm oil and water stabilized by potash as an emulsifier, is regarded as one of the prestigious traditional foods in Cameroon. However, the yellow achu soup faces a problem of stability due to the inabilit...

Open access Research Article 10.9734/ajocs/2021/v10i319091

Removal of Malachite Green Dye from Aqueous Solutions by an Efficient Nanosized NiO Fabricated by a Facile Sol-Gel Autocombustion

Hesham H. El-Feky, Reham N. Nassar, Alaa S. Amin & Mostafa Y. Nassar · Asian Journal of Chemical Sciences · 2021

Nickel oxide nanostructures were synthesized via a sol-gel combustion method using glucose, glycine and tartaric acid fuels. The effect of the fuel type on the formed nanostructures was studied. The as-prepared products were characterized by means of FE-SEM, HR-TEM, XRD, and FT-I...

Open access Research Article 10.9734/ajocs/2021/v10i219090

Antimicrobial Activities of Co (III), Mono and Tri-nuclear Ni Complexes Containing Schiff base Functionalized Imidazolium based Ligands

Samaila Abubakar, Musa Muktari & Rifkatu Kambel Dogara · Asian Journal of Chemical Sciences · 2021

We reported the antimicrobial activities of cobalt and nickel complexes containing imino-NHC ligands. Complex 2 was synthesized by direct reaction of the insitu generated free carbene from 2-[2-(3-benzylimidazol-1-yl)ethyliminomethyl]phenol ligand with NiCl2 diglyme while complex...

Open access Research Article 10.9734/ajocs/2021/v10i219089

Peroxidase, an Example of Enzymes with Numerous Applications

I. Nnamchi, Chukwudi, C. Amadi Onyetugo & I. Nnaji Amarachi · Asian Journal of Chemical Sciences · 2021

The enzyme peroxidase is a heme or iron-porphyrin protein that belongs to a large family of enzymes called the oxidoreductases. Their function mainly is to oxidize molecules at the expense of hydrogen peroxide. They are widely distributed in living organisms, and usually show dra...

Open access Research Article 10.9734/ajocs/2021/v10i219087