The content of Mn, Zn, Ni, Cu, Fe, and Pb in 10 samples of Kappaphycus alvarezii (cottonii) and 10 samples of Eucheuma denticulatum (spinosum) from 15 different sites in the intertidal coastal area of Zanzibar were determined by using EDXRF. The heavy metals assessed in both spec...
Open access
Research Article10.9734/CSJI/2021/v30i1030255
Elvis Jolinom Mbot, Cédric Sima Obiang, Maximilienne Ascenssion Nyegue, Bill Raphaël Bikanga, Huguette Agnaniet & Chantal Menut·Chemical Science International Journal·2021
Aims: The objective of this work is to determine the chemical composition and in vitro evaluation of the antibacterial activities of essential oils of four species of aromatic plants of Gabonese origin obtained by hydrodistillation. Methods: All the samples were examined by chrom...
Open access
Research Article10.9734/CSJI/2021/v30i930254
Aim: To evaluate water quality of the river Birim after a two-year ban as a result of illegal mining activities in the catchment areas of the river. Methodology: Samples were taken during wet and dry seasons in acid-washed plastic containers. Two water quality indices were adapte...
Open access
Research Article10.9734/CSJI/2021/v30i930253
Essential oil from peels of lemon (Citrus Lumion) fruit had been evaluated for its physiochemical, phytochemical compositions and application in skin-care product. Lemon peel oil, which is one of the under-utilized essential oil was isolated from the matured fruits peel using...
Open access
Research Article10.9734/CSJI/2021/v30i930252
Khémesse Kital, Moussa Mbaye, Adama Dione, Latyr Dione, Diéry Diouf, Diéne D. Thiaré, Lamine Cisse, Abdourahmane Khonté, Mame D. Gaye-Seye, Atanasse Coly, François Delattre & Alphonse Tine·Chemical Science International Journal·2021
The aim of this work is to develop a new method for the analysis of agmatine from UV-Visible absorption spectra. The optimization of the analytical parameters shows that the stoichiometry of the orthophthalaldehyde-agmatine complex is 1:1, the optimal pH is equal to 11 and the st...
Open access
Research Article10.9734/CSJI/2021/v30i930251
The propane oxidative dehydrogenation (ODH) reaction has been considered as an alternative method for propene production owing to its exothermic nature, which renders it environmentally friendly. The use of alkaline promoters for supported V catalysts can increase propene selecti...
Open access
Research Article10.9734/CSJI/2021/v30i930250
Aims: The aim of present study to evaluate the antioxidant potential of Abrus precatorius Linn leaves ethanol extract containing bioactive compounds on free radical scavenger using DPPH. Ethanol extract of Abrus precatorius Linn leaves was subjected to preliminary phytochemical s...
Open access
Research Article10.9734/CSJI/2021/v30i830248
D. U. J-P. N'Guessan, L. A. C. Kablan, A. Kacou, C. Bories, S. Coulibaly, D. Sissouma, P. M. Loiseau & M. Ouattara·Chemical Science International Journal·2021
Background: Benzimidazole constitutes a starting point for the development of new antiprotozoal agents since this nucleus exists in several pharmacologically significant molecules, in particular possessing antifungal, antiviral, antibacterial, and antiparasitic properties. Object...
Open access
Research Article10.9734/CSJI/2021/v30i830249
An understanding of the principles of complex equilibria and species distribution in different solutions is important in expounding and correlating the interaction of different ligands with different metal ions in complex formation. Therefore, acid-base equilibria involved in the...
Open access
Research Article10.9734/CSJI/2021/v30i830246
Fandia Konate, Fatogoma Diarrrassouba, Georges Stephane Dembele, Mamadou Guy-Richard Koné, Bibata Konate & Nahossé Ziao·Chemical Science International Journal·2021
The purpose of this study is to develop a QSAR model predictive of the antimalarial activity of a series of Dihydrothiophenone molecules using quantum chemical methods. The molecules were optimized from the B3LYP/6-31G (d, p) level of theory. The extracted descriptors are the vib...
Open access
Research Article10.9734/CSJI/2021/v30i830244
The optimal technological parameters for the production of caustic soda from sodium carbonate and sulfate and calcium hydroxide have been established. The influence of the concentration of lime milk on the rate of filtration by sediment and filtrate has been studied. Purpose of t...
Open access
Research Article10.9734/CSJI/2021/v30i830245
A new chalcone derivative (3E)-3-(2,4-dimethoxybenzyldene)-2,3-dihydro-4H-chromen-4-one (DBDB) has been synthesized by following the Claisen-Schmidt condensation reaction method at ambient temperature using the slow evaporation technique. The 3D crystal structure was solved using...
Open access
Research Article10.9734/CSJI/2021/v30i730243
Lead, even in low concentrations, can be dangerous and toxic to humans and their environment. Due to the toxicity of this metal, an electroanalytical method has been developed for the direct quantitative determination of Pb2+. The Pb2+ detection was performed using Differential P...
Open access
Research Article10.9734/CSJI/2021/v30i730242
Three electrochemical methods used to detect organic additives, A, B and C, in acidic plating baths. Cyclic voltammetric stripping (CVS) is used in industry to detect the concentration of organic additives indirectly by measuring the effect of commercial organic additives on the...
Open access
Research Article10.9734/CSJI/2021/v30i730241
Metformin hydrochloride is an anti-hyperglycaemic drug that is widely prescribed in the management of noninsulin diabetes mellitus (NIDDM). However, metformin does not undergo complete metabolism in the body thereby excreting significant amount through urine and eventual discharg...
Open access
Research Article10.9734/CSJI/2021/v30i730240