Seven sets of diffusible samples were allowed to diffuse in their medium in order to observe how much meters of distance a given volume of sample will cover in its medium at particular condition. At the same time also to observe how much joules of average kinetic energy that give...
Open access
Research Article10.9734/CSJI/2021/v30i1130261
The nature of carbon, initial components, molecules of homochiral abiogenic synthesis and their preservation from decay and racemization for more than 4.5 billion years in carbonaceous chondrites has not been established. In the oxygen-free atmospheres of the nebula and early Ear...
Open access
Research Article10.9734/CSJI/2021/v30i1030259
This study was designed to evaluate the phytochemical screening and antioxidant activities of Trichilia monadelpha plant extracts. The leaves were extracted using two different solvents namely-(n-hexane and methanol). The dry or wet yield of n-hexane extract was 1.3%, while meth...
Open access
Research Article10.9734/CSJI/2021/v30i1030257
The rapid increase in the number of multidrug-resistant of most pathogenic organisms is fast becoming a global concern, thus, the discovery of novel active pharmacological compounds against new targets is a matter of urgency. The incorporation of metal ions into organic ligands h...
Open access
Research Article10.9734/CSJI/2021/v30i1030258
The Toxicology and Pharmacology Laboratory is a high-risk work environment, especially the chemical risk that appears when people are exposed to reagents and chemicals. A corrective approach is required to identify and control these risks. The aim of this study is to determine ho...
Open access
Research Article10.9734/CSJI/2021/v30i1030256
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