A series of sandwiched films in the configuration, Ni(100nm)/Al(t)/Ni(100nm); t = 10nm, 20nm,……, 100nm (labeled as NAN1, NAN2, ………, NAN10) were deposited by thermal and electron beam gun evaporation techniques. The films were deposited onto the glass substrates held at 473K, unde...
Open access
Research Article10.9734/IRJPAC/2014/11187
UV light photolysis of chloroacetyl chloride (CH2ClCOCl) has been investigated using infrared spectroscopy in cryogenic Ar, Kr, Xe and O2 matrices. In all matrices, CHCl=C=O, HCl, CH2Cl2 and CO were produced, with the relative yields depending on the used matrix gas. The relative...
Open access
Research Article10.9734/IRJPAC/2014/12002
The UV light photolysis (λ >260 nm) of benzoyl chloride was investigated using matrix isolation FT-IR spectroscopy and computational methods (MP2, B3LYP, CCSD, and SAC-CI). The photolysis products were found to bechlorobenzene and CO. An intermediate species was identified wit...
Open access
Research Article10.9734/IRJPAC/2014/11796
Aims: To investigate the antidiabetic activity of the root bark of Maytenus senegalensis ethnomedically used in Nupeland for the management of diabetes and isolate phytoconstiteunts responsible for the pharmacological activities. Study Design: Air-dried root bark Maytenus senegal...
Open access
Research Article10.9734/IRJPAC/2014/8616
Study of thiamine ferrous complex is carried out by intensive use of cyclic voltammetry. The different mole ratio of ferrous thiamine complexes is assessed. Acidified KCl (1M) solution is used as supporting electrolyte. Mole ratio of complex is established 1:2 (thamine: Ferrous i...
Open access
Research Article10.9734/IRJPAC/2014/10977
Aims: To study the possibility of using biochar as an inexpensive sorbent material for the removal of copper ions in aqueous solution. Place of Study: Department of Chemistry, University of Ibadan, Ibadan, Oyo State, Nigeria. Methodology and Results: Batch adsorption studies were...
Open access
Research Article10.9734/IRJPAC/2014/11079
The young and old stock stem barks of Parinari polyandra Benth. were air-dried, chopped into smaller pieces and cold extracted exhaustively with ethanol. The phytochemical screening of the crude extracts was carried out using standard procedures while the young stem bark crude ex...
Open access
Research Article10.9734/IRJPAC/2014/11267
Commercial kaolin (Al2Si2O5(OH)4), a clay mineral obtained on the Upper Plateau (Jos, Central Nigeria) was characterized for physical properties such as moisture content (= 1.30%), sieved particle size (= 150µm) and (Apparent Bulk Density (= 0.40g/cm3) and compared to CaCO3, a r...
Open access
Research Article10.9734/IRJPAC/2014/11156
A study of heavy metals in roadside soils is critical in assessing the potential environmental impacts of automobile emission on the soil. This study is aimed at analyzing heavy metal pollutants that may be present in roadside dust samples in Jimeta/ Yola, Adamawa State, Nigeria....
Open access
Research Article10.9734/IRJPAC/2014/9359
The importation and refurbishing of second-hand electrical and electronic equipment (EEE) is a major concern all over the world and Nigeria is not in exception owing to the generation of e-wastes. The assessment of the levels of Pb, Cr, Ni, Cd and Zn in the dust at dismantling si...
Open access
Research Article10.9734/IRJPAC/2014/7694