Abstract The pyridyl based Schiff base ligands from 2-aminopyridine and benzaldehyde and 2-aminopyridine and 2, 4-dihydroxylbenzaldehyde were synthesized by: 1. For Schiff base from 2-aminopyridine and benzaldehyde; Distillation of Benzaldeyde to ensure maximum purity from possible contaminant like water and ammonia, and refluxed with freshly prepared 2-aminopyridine. The refluxing was done with ethanoic acid catalyst at a time and without catalyst. The process was followed up with Thin Lay...
Abstract Introduction: Lead is an oxidation reduction inactive metal however it interacts with a group of essential elements such as copper, zinc, selenium and chrome and iron. Accordingly current study aims to evaluate the effect of occupational Lead exposure on zinc and chromium level among factory workers. Materials and Methods: A cross-sectional study included 41 Lead exposure workers and 40 non exposure subjects as control group. Serum chromium and zinc were measured using Atomic Absorp...
ABSTRACT This study aimed at investigating the seasonal variation in the levels of contamination in soils, food crops, and domestic spring water samples from Wakaliga dumpsite in Kampala. Potentially Toxic Elements (PTE) and physicochemical properties were analysed during the dry season (May-July 2017) and the wet season (September-November 2017) and the results compared to standard limits set by international and local agencies. The results obtained indicated that some of the elements were ...
ABSTRACT This study aimed at investigating the seasonal variation in the levels of contamination in soils, food crops, and domestic spring water samples from Wakaliga dumpsite in Kampala. Potentially Toxic Elements (PTE) and physicochemical properties were analysed during the dry season (May-July 2017) and the wet season (September-November 2017) and the results compared to standard limits set by international and local agencies. The results obtained indicated that some of the elements were...
ABSTRACT Water quality monitoring in developing countries is inadequate, especially in stream water affected by urban effluents and runoff. The purpose of this study was to investigate heavy metal contaminants in the Pece Stream water in Gulu Municipality, Northern-Uganda. Water samples were collected along the channel of Pece stream and other samples from Nakaseke River which served as a control site. Selected heavy metals (Zinc, Copper, Lead and Cadmium) were determined using Atomic Absorp...
ABSTRACT This study aimed at investigating the physicochemical and microbial properties of Packaged Drinking Water, sold in Kansanga, Kampala. Seventy-two samples were selected by systematic random sampling from local stores in the study area. Three types of Packaged Drinking Water samples (bottled, sachet and handtied) were selected. Spring water samples were used as control samples. Titrimetric techniques were used to determine the Chlorides, Alkalinity and the Total Hardness, while Nitroge...
Abstract In this investigation,physicochemical properties of Acacia seyal(Talha) sample was studied [moisture content (10.79%), ash (1.1294%), nitrogen (0.15%), specific optical rotation (+46.1°), pH (4.5)]. Mineral contents of Ca and Mg in two samples (S1gum, S2 magnesium glucurnates and S2) has been analysizedby using Atomic Absorption Spectroscopy (AAS), the results were (Ca in sample S1 = 1934.4, Ca in sample S2 = 65.22, Mg in sample S1 = 19.86 and Mg in sample S2 = 1264.8). List of Co...
Abstract This study was carried out to assess the effect of hemodialysis on iron and C-reactive protein (CRP) in patients with renal failure. Sixty samples were collected from patients in period between April to May 2015, chosen randomly from Association specialized hospital in Khartoum states, and thirty apparently healthy individuals as controls. Measure plasma iron and CRP by using Hitachi/cobas C311 system, and results were analyzed using statistical of package social science (SPSS), comp...
The major purpose of the study was to determine Gender chemistry concepts' perception and its effects on academic performance of students in selected Secondary schools of Kapsokwony Division, Mt. Elgon District Kenya. The specific objectives of the study were to investigate the relationship between girl's attitude and performance in chemistry, Investigate the relationship between teachers' attitudes and girls' performance in chemistry, Determine the relationship between the curriculum and per...
ABSTRACT Nicotinic acid hydrazide (NH) and isonicotinic acid hydrazide (INI-1) and their respective acetone hydrazones were prepared. They were each complexed with U022' using the nitrate and acetate salts respectively. Both the ligands and complexes were characterized by IR, UV-VIS, gravimetric analysis, melting point measurement, and the invitro susceptibility test. The results indicate that the ligands form complexes with the metal ion with varying coordination numbers. The IR data show t...
ABSTRACT Petroleum sludge samples from Warri Refinery and Petrochemical Company (WRPC), Delta State, Nigeria and soil samples from five selected oil-impacted communities (Ubeji- 500 m, Ekpan- 1 .5 km, Aja-Etan - 2.5 km, Ifie-Kporo - 3.0 km, ljala-Ikenren - 3.8 km from WRPC) around WRPC were collected and analyzed to appraise the levels of total petroleum hydrocarbons (TPH), Polycyclic aromatic hydrocarbons (PAH), and heavy metals (Cr, Cd, Pb, Ni, Cu, Co, Mn, Fe and Zn) caused by the petroleu...
ABSTRACT There is a growing increase in biofuel consumption around the world. Currently there is a desire to enhance biodiesel and biodiesel blends properties by use of multifunctional additives. This project sought to evaluate the miscibility of fatty acid ethyl ester blends from algae and Jatropha curcas L. oils and also synthesise hydrogenated and oxygenated derivatives of d-limonene as potential additives. Sampling of citrus peels was done from Milly Fruit Processors and Kongowea Mombasa....
ABSTRACT Tomato leafminers, Tuta absoluta pose a control challenge due to resistance against many chemical pesticides including abamectin. In this study, new pesticide was developed by heating mixture of abamectin with neem oil at1:1 ratio. The heating of this mixture resulted to formation of a new compound which is highly biopotent than its constituent substances. This was confirmed by TLC spot formed at Rf 0.43. A leaf dip bioassay method was used to test toxicity against T. absoluta. Bio...
Abstract The aim of this study was to produce protein concentrate from the defatted kernel seeds of Balanites aegyptiaca and investigate its functional properties. The proximate chemical composition of the kernel seeds was determined. The results showed that the moisture, ash, crude protein, oil, and total carbohydrate contents were 3.89, 3.40, 42.41, 40.24 and 10.06% respectively. Protein concentrate was isolated by using alkaline extraction method which followed by isoelectric precipitatio...
Abstract The present study was designed to investigate the antioxidant and antimicrobial activities of three Sudanese plants ; (Rheumpalmatum Rutagraveolens, Moringaperegrine) Phyto chemical study was conducted to detect thebioactive compounds. The crude ethanolic extract was partitioned successively by chloroform , ethyl acetate and n-butanol. Different fractoins were assessed for antimicrobial potency against standard bacterial strains: Gram positive ( Bacillus subtilis (NCTC8236), Staphyl...