Journal of Scientific Research and Reports https://journaljsrr.com/index.php/JSRR <p><strong>Journal of Scientific Research and Reports (ISSN: 2320-0227)</strong> aims to publish high quality papers (<a href="/index.php/JSRR/general-guideline-for-authors">Click here for Types of paper</a>) in all areas of ‘scientific research’. By not excluding papers on the basis of subject area, this journal facilitates the research and wishes to publish papers as long as they are technically correct and scientifically motivated. The journal also encourages the submission of useful reports of negative results. This is a quality controlled, OPEN peer reviewed, open access INTERNATIONAL journal.</p> en-US contact@journaljsrr.com (Journal of Scientific Research and Reports) contact@journaljsrr.com (Journal of Scientific Research and Reports) Wed, 24 Feb 2021 10:57:54 +0000 OJS 3.1.1.4 http://blogs.law.harvard.edu/tech/rss 60 Development of a Solid - Phase System for the Extraction of Diazinon from Water https://journaljsrr.com/index.php/JSRR/article/view/30342 <p>A selected sorbent granulated activated charcoal solid - phase extraction was developed and used to extract diazinon from distilled water (TDW), distilled deionized water (DDW) and stream water (DW) was studied in the laboratory. Prior to the extraction, the half-live of the diazinon was determined in buffer solutions of pH 6, 7 and 8. The study showed that the half-lives were found to be 0.074, 0.022 and 0.077 hours respectively. Aqueous solution of diazinon was extracted in triplicate from distilled water, deionized distilled water and stream water using SPE systems. The extracted analyte was analysed by uv-visible spectrophotometer. The mean percentage recovery from distilled water, deionized distilled water and stream water using SPE 88.58%, 78.74% ad was 67.85% respectively while diazinon recovery using Liquid-liquid Extraction techniques gave a mean percent recovery of&nbsp; 96.60%, 93.80% and 75.54% for DW, DDW ad SW respectively. The mean percent analyte loss for SPE systems was 32.79%. The value was approximately twice higher than those obtained from LLE techniques with a value of 14.16%. The mean percentage recovery and analyte loss for SPE and LLE were compared. Similarly, the second order rate constant of diazinon of&nbsp; pH6, 7 and 8 were 2.6 x 10<sup>-3</sup>, 8.8 x10<sup>-3</sup> ad 2.5 x 10<sup>-3</sup> M<sup>-1</sup>S<sup>-1</sup>respectively. The study suggests that granulated activated charcoal can be used as an sorbent to extract diazinon from water.</p> J. D. Nanev, R. Sha’Ato, J. O. Igoli ##submission.copyrightStatement## https://journaljsrr.com/index.php/JSRR/article/view/30342 Wed, 24 Feb 2021 00:00:00 +0000 Toxicological Assessment of Crops Grown in Soils Amended with Municipal Solid Waste Ash https://journaljsrr.com/index.php/JSRR/article/view/30343 <p>This study assessed heavy metals (As, Cd, Cr, Cu, Pb, Ni, Fe and Zn) in sites and food crops (beans and groundnuts) harvested from farmland amended with municipal solid waste (MSW) ash. Farmlands with no amendments and crops grown on such soils served as control. Soils and crops samples were collected at full maturity to determine soil levels (mgkg<sup>-1</sup>), translocation in crops and accumulation index of metals. The crops were separated into roots, leaves and grains before analysis and heavy metals were determined using VGB 210 Atomic Absorption Spectrometer. Mean concentrations (mgkg<sup>-1</sup>) of studied metals were 0.053±0.03, 0.053±0.01, 648.55±1.07, 168.699±1.05, 36.514±4.66, 339.53±0.12, 232.331±0.69 and 363.482±0.00 in test soils and 0.010±0.10, 0.050±0.01, 83.333±1.00, 38.618±1.03, 2.913±0.00, 163.248±0.22, 41.579±3.01and 82.798±0.28 in control soils for As, Cd, Cr, Cu, Ni, Pb, Fe and Zn respectively. Observed levels for test soils were significant (p≤0.05) in comparison to those of the control and were highest for Cr, Cu, Ni, Fe and Zn. Metals concentrations in the tissues of beans and groundnut grown on both sites were found to be decreasing in the order roots &gt; leaves &gt; grains. Levels of As, Cr, Cu, Ni and Fe fell below the WHO standard while Cd, Pb and Zn exceeded those set limits. Translocation factors for beans and groundnut cultivated on test site indicated effective translocation of arsenic from soils to the roots. Observed pattern has health implication for raised fodder for animal husbandry in such areas. Similarly, the geo-accumulation index of both test and control sites revealed they were polluted with Zn, Cr, Ni, Cu, Ni, Cu and Fe.</p> G. D. Ibrahim, E. O. Nwaichi, G. O. Abu ##submission.copyrightStatement## https://journaljsrr.com/index.php/JSRR/article/view/30343 Wed, 24 Feb 2021 00:00:00 +0000 Strategies for Management of Certificates of Analysis of Corona virus Disease 2019 for Travellers in Times of Pandemic: Case of the Pasteur Institute of Côte d'Ivoire https://journaljsrr.com/index.php/JSRR/article/view/30345 <p>The <em>Corona virus</em> disease 2019 (COVID-19) health crisis has not spared any country in the world, from the most advanced to the poorest. COVID-19 pandemic has exposed much vulnerability in systems and societies. In all resource-constrained countries, the response has been very complicated. The pandemic had to be dealt with very quickly with limited health and economic resources to avoid the hecatomb already predicted for these countries. In Côte d'Ivoire in particular, health and government authorities worked with state or private structures with infrastructure and human resource capacities to develop a rapid and effective response plan. Several measures have been adopted to reduce the spread of COVID-19. As a result of all these strategies, the number of cases of infected persons has been gradually decreasing. This new situation has favored the revision of certain restrictive measures, in this case the closure of air borders, which have of course been eased under certain conditions. Travelers are required to have a paper attesting to their negativity in COVID-19 test. Thus, Pasteur Institute of Côte d'Ivoire (IPCI), the reference laboratory for carrying out COVID-19 tests, was responsible for supplying a certificate of analysis to travellers. The purpose of this article is to show the internal process developed and different strategies implemented by IPCI to establish and deliver this document in order to meet the demand in the context of a pandemic.</p> Diplo Tchepé Flore Bernadette, Anné Blessa P. A. Jean Claude, Achy Brou Armand, Aoussi Serge, Yéo Alain, Golly Koffi Julien, Blavo-Kouamé Belinda, Yao Serge-Stéphane, Kangah-N'goran Asseh Tatiana, Dosso Mireille ##submission.copyrightStatement## https://journaljsrr.com/index.php/JSRR/article/view/30345 Thu, 25 Feb 2021 00:00:00 +0000