A. Mohd Zulkhairi, M. Razali, M. B. Umikalsum, G. Mohd Norfaizal, A. Aimi Athirah & M. N. Siti Aisyah·Asian Journal of Chemical Sciences·2020
Aims: To determine the oxalate contents in different varieties of taro (Colocasia esculenta) collected in Peninsular Malaysia. Study Design: Ultra High-Performance Liquid Chromatography (UHPLC) with UV detector (Diode Array Detection, (DAD)) was used to determine the total and so...
Open access
Research Article10.9734/ajocs/2020/v7i319023
Aims and Objectives: To determine the effect of extracting solvents on the physicochemical properties of oils extracted from four locally available plant seeds in Nigeria namely: Alchornea cordiforlia, Hura crepitans, Irvingia gabonensis and Pycnanthus angollensis using three dif...
Open access
Research Article10.9734/ajocs/2020/v7i319022
Bio-phenol formaldehyde (BPF) resole resins were characterized by liquid-state 13C Nuclear Magnetic Resonance (NMR) spectroscopy. The liquid 13C NMR analysis indicated that the condensation reactions between the bark phenolic compounds and the formaldehyde occurred during the syn...
Open access
Research Article10.9734/ajocs/2020/v7i319021
The aim of this study was to determine the levels of some trace metals in water from Cross River estuary (CRE) and estimate the human health risk associated with water from the estuary via ingestion pathway and dermal contact. The trace metals in water were determined using atomi...
Open access
Research Article10.9734/ajocs/2020/v7i319020
Schiff base was prepared by the condensation of 3-aminophenol and benzaldehyde in a 1:1 ratio and its complexes of Mn(II), Co(II) and Cu(II) were synthesized in a 1:2 ratio (Metal: Ligand) and the Schiff base and the complexes were characterized by using the different techniques....
Open access
Research Article10.9734/ajocs/2020/v7i219019
New complexes of Cu (II) and Ni (II) of the Schiff Base, 2-(((2-((4-hydroxybenzylidene) amino)ethyl)imino)methyl) phenol were synthesized and characterized by analytical and physico-chemical techniques including magnetic susceptibility, conductivity measurements, electronic and...
Open access
Research Article10.9734/ajocs/2020/v7i219018
A kinetic and mechanistic approach was used to simultaneously study the oxidation of As(III) and reduction of Cr(VI) in aqueous phase, and in the presence of Fe(III). Reactions were monitored by UV-visible spectrophotometry. The stoichiometry of the reaction was . The rate equati...
Open access
Research Article10.9734/ajocs/2020/v7i219017
Aim: The present study was aimed to determine the concentration of heavy metals (Pb, Cr, Mn, Cu and Cd) in waterleaf (Talinum triangulare), lettuce (Lectuca sativa) and spinach (Amaranthus hybridus) from three farmlands. Study Design and Place of Study: The research was carried o...
Open access
Research Article10.9734/ajocs/2020/v7i219016
Sokoto Ordinary Portland Cement, Dangote Ordinary Portland Cement and synthesized Portland Cement were blended with various proportions of limestone. X-Ray fluorescence (XRF) studies revealed increase in CaO concentration with addition limestone in all samples studied, while the...
Open access
Research Article10.9734/ajocs/2020/v7i219015
This study was conducted to compare the levels of selected heavy metals (Pb, Cr and Cd) in inorganic fertilizers and bio slurry from different feed stocks. Bio slurry samples from chicken droppings, cow dung and pig wastes were analyzed for levels of selected heavy metals. Inorga...
Open access
Research Article10.9734/ajocs/2020/v7i119014