Research Papers/Topics in Chemistry

POLLUTION INDICES OF TRACE METALS IN ROADSIDE SOIL

ABSTRACT   Roadside soil samples were obtained from Eka Street, Oron Road, Ikot Ekpene Road and Nwaniba Road within Uyo metropolis, Akwa Ibom State. Roadside soils were also obtained from Uwana Lane and used as Control. These samples and Control were analysed for the concentration of Cadmium (Cd), Nickel (Ni), Lead (Pb), Zinc (Zn) and Iron using Atomic Absorption Spectrophotometer (AAS) unicam 939 model. Results obtained indicated the following mean concentration (mg/kg) for ...

In Vitro Evaluation of Metal Chelating and Ferric Reducing Potentials of Methanol Extracts of Adasonia digitata Leaf

ABSTRACTAdansonia digitata L. (Malvaceae) is commonly known as baobab tree native to Africa. Baobab is a multi-purpose tree which offers protection and provides food, clothing and medicine as well as raw material for many useful items. This study aims to elucidate the metal chelating and ferric reducing potentials of methanol extracts of Adansonia digitata L. (Malvaceae) leaf using in vitro model. Phytochemical screening was carried out on the extract and it showed that the extract ...

COMPARATIVE CHARACTERIZATION OF SOME PORTLAND CEMENTS SOLD IN SOKOTO CITY.

ABSTRACTThe aim of this research was to characterize some Portland cements (Bua, Dangote and Sokoto cement) sold in Sokoto city using standard methods; due to the persistent collapse of buildings. The results showed that Sokoto cement recorded the least CaO content (58.99%) while Dangote cement had the highest CaO content being 61.56%. All the samples have Al2O3, SiO2 and Fe2O3 contents within the acceptable limits with the exception of Dangote with SiO2 content being below the required stand...

Comparative determination of Calcium and Magnesium in food substances using Atomic absorption spectrophotometry and EDTA Titrimetry

A comparative study was carried out for the determination of calcium and magnesium in milk and water melon (food sources of calcium and magnesium). Mixed standard solutions of calcium and magnesium (spike) were added to the samples before digesting with a mixture of concentrated nitric acid and concentrated hydrochloric acid (1:3). The calcium and magnesium content of the digest were determined using flame atomic absorption spectrophotometer (FAAS) and EDTA titration. The percentage re...

NON ENZYMATIC SYNTHESIS OF BIOETHANOL FROM CELLULOSE IN WASTEPAPER MATERIALS.

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BIOETHANOL PRODUCTION FROM GROUNDNUT SHELL (Arachis hypogaea) AND CARPET GRASS (Axonopus flexuosus) BY ACID HYDROLYSIS USING Saccharomyces cerevisiae

ABSTRACTGroundnut (Arachis Hypogaea) shell and carpet grass (Axonopus flexuosus) were assessed for bioethanol production using dilute acid hydrolysis (10 %, 15 % and 20 % H2SO4) and fermentation using yeast (saccharomyces cerevisiae). The percentage yields were determined to be 27.15 %, 19.69 % and 8.79 % for groundnut shell and 22.69 %, 13.92 % and 7.69 % for carpet grass respectively. The densities of the bioethanol produced were calculated to be 0.8072 g/cm3 for groundnut shell and 0.8303 ...

Antifungal Activity of Mimosa Pudica,Isolation and NMR Characterization of Bioactive Components.

ABSTRACT In this study, the whole plant of Mimosa pudica was extracted using absolute ethanol. The crude ethanolic extract and its isolated triterpenoid glycoside were tested for antifungal activity towards Aspergillus flavus and Trichophyton rubrum using Well Diffusion Method. At concentrations of 25 –100 mg/mL, the extract possesses antifungal activity (from being partially active to very active) against Aspergillus flavus and Trichophyton rubrum. The TLC profile of th...

ANALYSIS OF TRACE METALS IN MUSCLE AND LIVER OF COW MEAT PURCHASE FROM URUA IKOT OSURUA

ANALYSIS OF TRACEMETALS IN MUSCLE AND LIVER OF COWMEAT PURCHASE FROM URUA IKOT OSURUA.A RESEARCH PROJECTABSTRACTThe concentration of trace metals (cadmium, Lead, Iron, Copper and Zinc) in two organ (muscle and liver) from cow meat obtained from urua Ikot Osurua was determined using Atomic absorption spectrophotometer. Their result was as follows muscle (Cadmium: 0.78±0.002, Lead: 0.044±0.001, Iron: 0.711±0.000, Copper: 0.833±0.082, Zinc: 0.580±0.001). The obtained result declared that co...

ANALYSIS OF TRACE METALS IN KIDNEY AND SKIN OF COWMEAT PURCHASE FROM URUA MBAKARA

ANALYSIS OF TRACE METALS IN KIDNEY AND SKIN OF COWMEAT PURCHASE FROM URUA MBAKARA   A RESEARCH PROJECT REPORT     ABSTRACT This study was to determine the concentration of trace metal (Cd, Pb, Fe, Cu and Zn) in the skin and kidney of a cowmeat. The analysis was carried out using Atomic Absorption Spectrophotometer (AAS). The concentration of the trace metals in the different organs were as follows, skin cadmium 0.86 + 0.003, Lead 1.09 + 0.002, Iron 14.30 + 0.001...

The Effect of Broken Homes on Science Education Students: A Case Study of Some Selected Secondary Schools in Augie Local Government

INTRODUCTIONThe home is the primary institution for children, home as perceived by Abdulganiyu (1997), Christe (2009), defined home as a place in which an individual or a family can rest and store personal property.Haven’t define the concept of home it is therefore important to define family. The family can therefore, be looked at as a social group characterized by common resident, economic, cooperation and production.When a child is born, the family is the first primary group with which th...

ICT as antidote in learning difficulty in chemistry at senior secondary school level

ABSTRACTThis study investigated the use of information and communication technology (ICT) as antidote in learning difficulty in chemistry in Ilesa-East L.G.A of Osun state.100 students and 30 teachers were randomly selected for the study.The instruments used for collecting information were teachers’ and students’ questionnaires. Data collected were analyzed using Chi-square statistic. The results revealed that:1. There is a significant difference between teaching guide in chemistry and th...

ANTIMICROBIAL AND PHYTOCHEMICAL ACTIVITIES OF Datura stramonium (GEGEMU LEAVES)

1.0 INTRODUCTION Daturastramoniumis an annual herb, with stem erect and spreading branches above. It is common in the waste land, fields and gardens in Baghdad district. Leaves, seeds and roots contain the alkaloid daturine (a mixture of the two alkaloids hyoscyamine and atropine) and also contain scopolamine alkaloid (Hyosine) acids, tannin and fatty oil. Plants are rich source of secondary metabolites with interesting biological activities (Palombo and Semple, 2001; Koduruet al., 2006)...

Application of Chemometric Technique in the Determination of the Chemical Facies of Groundwater Pollution Assessment in the Shallow Marine Aquiferous Sandstone in Udi and Environs

ABSTRACTThis paper examines the hydrochemical facies of groundwater present in the shallow marine Plain Sands aquifer of Udi and its immediate environs, maps their areal distribution and attempts to explain the controlling processes responsible for the various facies. 12 water samples were collected from wells tapping the shallow marine Plain Sands aquifer of Udi and environs and analyzed for various parameters including pH, total dissolved solids (TDS), K, Na, Ca, Mg, Cl, NO3, Fe, Pb, TH, Ac...

Studies On The Blastofiltration Potentials Of Selected Plant Seeds For The Treatment Of Lead And Cadmium Contaminated Water Samples

ABSTRACTPhytoremediation, based on the theory of botanic tolerance and accumulation of certain pollutant, is a new developing ecological technique primarily used to clean polluted environment. Blastofiltration is applied to phytoremediation of heavy metal polluted water at present. The study used castor, okra, melon and moringa seeds as experimental materials to investigate their potentials as possible blastofiltration materials. The results showed that with the trial time lasting up to 72 ho...


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