Browsing Chemistry by Title
Now showing items 21-36 of 36
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Indoor levels of polycyclic aromatic Hydrocarbons from wood burning in Rural houses in western Kenya
(Maseno university, 2011)Western Province of Kenya has prevalence of grass-roofed traditional houses, where cooking is done in open fire places using various biomass types, which leads to accumulation of soot under the roofs. Polycyclic Aromatic ... -
Influence of area of production, nitrogenous Fertilizer rates and plucking intervals on the \ production of fatty acids in clonal tea '(Camellia sinensis (L.O) Kuntze) leaves
(Maseno university, 2011)Tea, Camellia sinensis, is widely grown in the highlands of Kenya for manufacture of mainly black tea. The most costly inputs in tea cultivation are nitrogenous fertiliser and plucking which are key determinants of yield ... -
Kinetic Studies of Malathion Dissipation Degradation in Lake Victoria Water in the Presence of Zeolite
(Maseno University, 2011)Malathion is an organophosphorus pesticide widely employed in controlling pests in agriculture, household, stored grains, greenhouse, forestry and public health. Malathion usually adsorbs on soilsand through surface ... -
Monitoring of carbofuran residues in Laikipia and Isiolo districts in Kenya for ecological risk Assessment
(Maseno university, 2010)Granular carbofuran which was widely used to control agricultural pests in Isiolo and Laikipia districts was also misused by local farmers and pastoralists to kill predators leading to massive deaths of Gyps vultures ... -
Optimization of Graphene oxide with methyl-β-Cyclodextrin and carbon Nanotubes with Polypyrrole for removal of lead (ii) and copper (ii) ions from water
(Maseno University, 2018)ABSTRACT Heavy metals pose risks to the humans and the environment. Lead (II) and copper (II) are of particular concern because they can cause irreversible damage to vital body organs. Their sources include leaded paints, ... -
Phytochemical evaluation of Elaeodendron buchananii stem Bark for microbial activities
(Maseno university, 2010)Public health is under serious threat due to wide array of emerging and re-emerging infections as a result of resistance of microorganisms to first line drugs. Despite the wide availability of clinically useful antifungal ... -
Phytochemical evaluation of Ocimum kilimandscharicum GUERKE, Gnidia subcordata MEISN AND Annona mucosa jacq leaves for secondary metabolites and their insecticidal activities against Sitophilus zeamais and Prostephanus truncatus.
(Maseno University, 2023)Global food security of which maize is a major component is threatened by food loss due to storage insect pests. Sitophilus zeamais and Prostephanus truncatus cause stored maize losses of 20% world wide and 45% in Africa. ... -
Phytochemical investigations of lonchocarpus eriocalyx (harms), alysicarpus ovalifolius (schumach) and erythrina abyssinica (dc) for antiplasmodial, larvicidal, mosquitocidal and antimicrobial activities
(Maseno University, 2016)Management of parasitic disease continues to be a burden and a major public health problem the world over today. Malaria is most lethal of the parasitic vector-borne diseases due to drug and vector resistance to the available ... -
Relationship between mites infestation levels in Kenyan tea to overhead volatile organic compounds and their variations with seasons, regions and selected agronomic practices
(Maseno University, 2016)Tea (Camellia sinensis) is a major cash crop in Kenya that suffers economic losses due to Brevipalpus phoenicis and Oligonychus coffeae infestations during droughts. Pesticides use on tea is prohibited and pests control ... -
Residual diazinon in brassica oleracea var. Acephala and influence of application conditions on its levels in Kimira-oluch smallholder farmers improvement project, Kenya
(Maseno university, 2021)Use of pesticides in agriculture often causes residual effects on crops with potential health risks. Diazinon, a synthetic pesticide whose dietary exposures have been associated with human health impacts is popular in the ... -
Sorption of sulfonamides by γ-fe2o3 modified natural clay: Isotherms, Kinetics and Thermodynamics studies
(Maseno University, 2018)ABSTRACT In recent years, research has indicated the ... -
Study of dissipation and degradation of malathion and Dimethoate from the soil and the pea plant (pisum sativum) Using a radioisotope tracer technique
(Maseno University College (Moi University), 1999)The dissipation and degradation of 14C-malathion {S-l, 2- bis (ethoxy carbonyl) ethyl 0, 0- dimethyl phosphorodithioate} and T'Csdimethoate {O, O-dimethyl S-methyl carbamoyl methyl phosphorodithioate} from the soil and ... -
Study of Dissipation and Degradation of Malathion and Dimethoate from the soil and the Pea Plant (Pisum Sativum) Using a Radioisotope Tracer Technique
(Maseno University, 1999)The dissipation and degradation of 14C-malathion {S-l, 2- bis (ethoxy carbonyl) ethyl 0, 0 dimethyl phosphorodithioate} and T'Csdimethoate {O, O-dimethyl S-methyl carbamoyl methyl phosphorodithioate} from the soil and ... -
Survey of greenhouse gas fluxes from different vegetation, seasons and landscape units in small scale farming systems in lower Nyando-Kenya
(Maseno University, 2018)Greenhouse gases (GHGs) emissions data from large-scale agricultural activities are available. In developing countries, e.g. Kenya, agriculture is dominated by smallholder farming, data on the assessment of possible ... -
Synthesis and characterization of municipal waste incinerator fly ash based Geopolymers for the removal of Endosulfan from water: kinetics, isotherms, and thermodynamics
(Maseno University, 2023)Endosulfan is a broad spectrum organochlorine insecticide which acts as a contact poison for controlling a wide variety of insects. However, extensive and uncontrolled use of insecticides leads to water pollution. ...