Browsing Department of Chemistry by Title
Now showing items 75-94 of 334
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Degradation capacity of a 1, 2, 4-trichlorobenzene mineralizing microbial community for traces of organochlorine pesticides
(Elsevier, 2010-07-15)A soil-borne microbial community isolated from a contaminated site was previously shown to mineralize 1,2,4-trichlorobenzene (1,2,4-TCB) under aerobic conditions. The key degrader in this community was identified as ... -
Development of a multiplex PCR technique for simultaneous detection of Sweet potato feathery mottle virus and Sweet potato chlorotic stunt virus
(An International Journal of the Italian Phytopathological Society, 2010-07-01)Virus diseases, especially those caused by mixed infections, are among the economically most devastating diseases of sweet potato. Sweet potato virus disease (SPVD), which is caused by mixed infection of Sweet potato ... -
Distribution and removal efficiency of heavy metals by a conventional activated sludge at a municipal wastewater treatment plant in Kisumu City
(International Science Community Association, 2017)The aim of this study was to evaluate the occurrence and the instantaneous overall efficiency of the municipal wastewater treatment facility in Kisumu City-Kenya, a highly populated City, and compare the effluent quality ... -
Distribution of arsenic, silver, cadmium, lead and other trace elements in water, sediment and macrophytes in the Kenyan part of Lake Victoria: spatial, temporal and bioindicative aspects
(Springer Berlin Heidelberg, 2020-01)This is the first detailed report on the distribution of Ni, As, Sr and Ag in water, sediments and macrophytes from Lake Victoria, complemented with recent data on the heavy metals Cr, Cu, Zn, Cd and Pb. The study was ... -
Does powder and granular activated carbon perform equally in immobilizing chlorobenzenes in soil?
(Royal Society of Chemistry, 2015)The objective of this study is to compare the efficacies of powder activated carbon (PAC) and granular activated carbon (GAC) as amendments for the immobilization of volatile compounds in soil. Soil artificially-spiked ... -
Does powder and granular activated carbon perform equally in immobilizing chlorobenzenes in soil?
(Royal Society of Chemistry, 2015)The objective of this study is to compare the efficacies of powder activated carbon (PAC) and granular activated carbon (GAC) as amendments for the immobilization of volatile compounds in soil. Soil artificially-spiked ... -
Effect of anthropogenic activities on the water quality of Amala and Nyangores tributaries of River Mara in Kenya
(2015-10-30)Abstract Mau Forest in the upper reaches of the Mara River basin has recently undergone increased forest destruction followed by human settlement and agricultural activities. These anthropogenic activities may be ... -
Effect of copper (II) on the sorption/desorption of chlorsulfuron in five wheat growing regions of the Mara River Basin, Kenya
(Scienceedomain International, 2016) -
Effect of crude and defatted Moringa oliefera seeds as natural coagulants in the removal of physical, chemical and bacteriological parameters from turbid river water
(Journal of Scientific and Innovative Research, 2016)There is a great concern about commercial coagulants and their residues in treated water which leads to Alzheimer disease in old people. For this reason, a lot of research is focused on plants with coagulating properties. ... -
The effect of cultivation techniques on tea quality
(Burleigh Dodds Science Publishing, Cambridge, UK, 2018) -
The effect of cultivation techniques on tea quality
(Burleigh Dodds Science Publishing, Cambridge, UK,, 2018)Not available for book chapter -
Effect of genotypes in different environments on micronutrient content of black tea
(bio publisher, 2014-02-08)Essential elements are needed in the day to day living of both human beings and the plants including tea (Camellia sinensis). Different clones of tea have been developed and distributed to farmers in various locations ... -
Effect of genotypes in different tea-growing locations in Kenya on some micronutrients content of black tea.
(International Society of Tea Science, 2013)Human beings and plants require essential elements for normal physiological functions and survival. Tea beverages are the most widely consumed fluids after water. If the beverages have appreciable levels of micronutrients, ... -
Effect of kaolin pre-treatment method and NaOH levels on the structure and properties of kaolin-derived faujasite zeolites
(Royal Society of Chemistry, 2021)Fusion with NaOH is considered effective in the conversion of kaolin to soluble aluminosilicates. However, to date, there is no consistency in the nature and type of zeolite structures prepared from kaolin via this approach, ... -
Effect of nitrogenous fertilizer application and harvesting intervals on yield of tea clone TRFK 6/8 in Tanzania
(Inter-University Council for East Africa Lake Victoria Research Initiative, 2011)The response of tea clone TRFK 6/8 to nitrogenous fertilizer application and plucking intervals was examined at two sites in Lake Victoria basin in Tanzania between October 2008 and May 2011. The yield varied among locations ... -
The effect of substituents on the reactivity of dichloridotriphenylphosphinoruthenium(II) complexes: kinetic and mechanistic study
(Taylor and Francis, 2021)The rates of substitution of chloro ligands from a series of ruthenium(II) complexes, [Ru(κ3-L)(PPh3)Cl2] (L = 2,2′:6′,2′′-terpyridine, 1; 4′-(4-methylphenyl)-2,2′:6′,2′′-terpyridine, 2; 4,4′4″-tri-tert-butyl-2,2′:6′,2′′ ... -
Effect of the extended π-surface and N-butyl substituents of imidazoles on their reactivity, electrochemical behaviours and biological interactions of corresponding Pt(II)-CNC carbene complexes: exploring DFT and docking interactions†
(Royal Society of Chemistry, 2024)In this study, we synthesised and characterised three C^N^C pincer (N-heterocyclic carbene)-type tridentate ligands, namely, 2,6-bis[(3-methylimidazolium-1-yl)methyl]pyridine dibromide (L1), 2,6-bis[(3-methylbenzimidazol ... -
The effects of altitude on the chemical composition of black tea
(John Wiley & Sons, Ltd, 1990-01-01)Changes in quality parameters of crush, tear and curl (CTC) black clonal teas due to variations in altitude within a radius of 10 km were determined. There were significant (P= 0.05) changes in all the quality parameters ... -
Effects of autoclaving and mercuric chloride sterilization on PAHs dissipation in a two-liquid-phase soil slurry
(Elsevier, 2011-02-01)A two-liquid-phase (TLP) soil slurry system was employed to quantify the efficiencies of autoclaving and mercuric chloride sterilization in the dissipation of polycyclic aromatic hydrocarbons (PAHs). The fates of 11 PAHs ... -
The effects of blending clonal leaf on black tea quality
(Elsevier, 1999-08-01)Although most clones are selected for quality and yields, there are clones in production with superior yields but producing inferior black tea quality and vice versa. Some of these clones with superior yield give very poor ...