Department of Basic Sciences: Recent submissions
Now showing items 21-40 of 75
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Magnetic Concentration of Iron in Lateritic Soils from Kamahuha, Murang’a County, in Kenya using Carbon Monoxide Generated In-Situ
(International Journal of Scientific Engineering and Technology, 2014)Chemical and Mineral Analyses of laterites from selected sites in Kamahuha area of Murang’a County, in the Republic of Kenya, have been carried out with particular interest in the levels of iron and the type of minerals ... -
Effects of Temperature on Ilmenite During Concentration of Iron in Laterites Using Charcoal and Separation using Magnetic Separation
(International Journal of Scientific Engineering and Technology, 2014)Effect of temperature on ilmenite minerals found in laterites has been investigated. It was found that during reduction of iron minerals in laterites to magnetite using charcoal at temperatures of about 500-700oC, ilmenite ... -
Copper Extraction Using Aluminum in Acidic Leachate Media
(IISTE, 2020)Copper is found in several minerals with varied elemental composition. For instance, copper minerals occur as chalcopyrite (CuFeS2), bornite (Cu5FeS4), chalcocite (Cu2S), covellite (CuS), cuprite oxide (Cu2O), and malachite ... -
Lithological Deformation And Its Effect On Mineralization In Migori Greenstone Belt, Kenya
(IOSR Journal of Applied Geology and Geophysics (IOSR-JAGG), 2023)Migori Greenstone Belt, located on the western part of Kenya is considered as one of the major gold fields in Kenya. It’s mineralization is believed to occur a long a system of veins. With the continuous extraction of ... -
Demarcating Productive Parts of Migori Greenstone Belt using Edge Detection Techniques
(Journal of Geology & Geophysics, 2021)Edge detection is one of the enhancement procedures in potential data interpretation. A number of edge detection methods can be applied in the interpretation of gravity data, the choice of the method depends on the estimated ... -
Geo-Electric Investigation of Flammable Natural Gas in Kipeto Area, Kajiado County in Kenya
(Journal of Geology & Geophysics, 2022)Vertical Electrical Sounding (VES) survey using Schlumberger electrode configuration was employed in Kipeto area, Kajiado County with an objective to determine the extent of natural flammable natural gas and to characterize ... -
Power Spectral Analysis and Edge Detection of Magnetic Data of Migori Greenstone Belt, Kenya
(IOSR Journal of Applied Geology and Geophysics, 2018)With the continuous extraction of minerals in Migori greenstone belt, exploration is currently evolving from surface based exploration to subsurface exploration. This necessitates a good understanding of the geophysical ... -
Concentration of Rutile Using Thermally Heated Mixture of Low Grade Ilmenite Ores with Biomass from Maragwa Location in Tharaka Nithi County Kenya
(International Journal of Materials and Chemistry, 2022)The mineral data from Kenya shows several deposits of low grade titanium yet the country has been importing titanium products. Some regions of Tharaka Nithi County contain titanium minerals. These deposits have never been ... -
Impure Hydrazone Preparation from Chicken Dung
(IISTE, 2020)Hydrazones are strong reducing agents. Some hydrazones like hydrazine are is highly toxic and unstable and are therefore found dissolved in water. Chicken dung contains amines and uric acid that are potential sources of ... -
Monitoring the extraction of copper from chicken dung leachate using an aluminium electrode as an indicator
(ScienceDirect, 2019)Copper is found in several minerals in the earth's crust with varying the elemental and mineralogical composition.Several techniques of extraction have been investigated all in the effort of obtaining a cheaper and viable ... -
Copper extraction by wet chemical method
(Journal of Sustainable Mining, 2018)In many countries large deposits of copper with no locally established copper based industries occur because known methods for extraction are prohibitively expensive and unaffordable. This study reports on an affordable ... -
Iron Enrichment In Laterites Soils From Selected Regions In Kenya Using Magnetic Separation
(IOSR Journal of Engineering (IOSRJEN), 2014)Laterites also known as murrams from selected sites in the Republic of Kenya were analyzed for chemical and mineral content with particular interest in iron. In Kenya, laterites are only used mainly for surfacing roads. ... -
Rutile Concentration by Reduction of Titanium Ore - Laterite Mixture Using Biomass
(American Journal of Materials Science, 2022)Rutile is a mineral which is used in making paints, ointments, tooth paste, sunscreens, just to mention a few products. Titanium metal makes alloys with less density and resistance to corrosion, which are used in making ... -
Phytochemical screening and repellence potencies of bioactive molecules of plant extracts derived from Ocimum suave, Ocimum americanum and Eucalyptus citriodora against Anopheles gambiae
(Malaria Journal, 2025)Background Malaria poses a global threat to human health. It’s a vector-borne disease of public health concern and afects the socio-economic status of people in developing countries. Malaria management faces many challenges ... -
Assessment of Carbon Sequestration and Reflective Properties of High-Albedo C3 and C4 Plant Species: A Laboratory Approach
(Acta Scientific NUTRITIONAL HEALTH, 2024-12)This study explores the dual potential of high-albedo C3 and C4 plant species to mitigate regional climate change through carbon sequestration and reflective properties. C3 and C4 plants differ in their photosynthetic ... -
Gamma ray spectrometric analysis and assessment of radiation hazards in soils of Mbeere North region, Kenya
(Radiation Protection Dosimetry, 2024)This study used gamma ray spectrometry to determine the radiological safety of construction soil sampled randomly from MbeereNorth region, Kenya. The mean activity concentration of 232Th, 238U, and 40K was 149.7 ± 2.8 ... -
Evaluation Of Mung Bean (Vigna Radiata) Varieties For Resistance To Bruchid (Callosobruchus Spp) Infestation Using The “No Choice Test"
(IOSR Journal of Agriculture and Veterinary Science (IOSR-JAVS), 2024-09)Mung beans (Vigna radiata) commonly known as green grams, are an important legume crop cultivated for food and as a source of income. Mung bean seeds are highly susceptible to infestation by bruchids (Callosobruchus spp), ... -
Numerical simulation of an HTL-free carbon-based perovskite solar cell with graphitic carbon nitride doped zinc oxide as electron transport layers
(Elsevier, 2025)As a result of the advances in technology and the need for energy, an urge to develop a stable, high performance solar cell has initiated various scientific intentions to attain a cheaper and clean energy supply. In this ... -
A review on the Phytochemistry and Pharmacological Activities of some Species from Genus Dodonaea (Sapindaceae Family)
(The Journal of Phytopharmacology, 2024-02)This review focuses mainly on findings of the chemistry and pharmacological activities of some plant species from genus Dodonaea. The continued chemical studies of Dodonaea species such as D. viscosa, D. angustifolia, ... -
Soil To Plant Transfer Factors of Natural Radionuclides in Khat (Catha endulis) from Igembe South Subcounty, Kenya.
(International Journal of Engineering and Applied Physics (IJEAP), 2024-01)This study evaluated the soil to plant transfer factors of khat (Catha endulis) to determine the absorption potential of natural radionuclides. Soil and leaves of Khat were sampled from Igembe south subcounty, Kenya and ...