Research Articles (Chemistry)
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Sensitive electrochemical determination of ethambutol in pharmaceutical formulation and human urine at nickel nanoparticles/electrochemically reduced graphene oxide modified electrode
(Chemical Society of Ethiopia, 2019)This paper describes the application of nickel nanoparticles decorated electrochemically reduced graphene oxide modified glassy carbon electrode (NiNPs/ERGO/GCE) for the determination of ethambutol (ETB), an anti-Mycobacterium ... -
Electrochemical determination of phenothrin in fruit juices at graphene oxide-polypyrrole modified glassy carbon electrode
(Elsevier, 2018)An electrochemical sensor was developed based on graphen oxide-polypyrrole modified glassy carbon electrode (GO/PPy/GCE) for sensitive determination of phenothrin in fruit samples. GO/PPy/GCE was characterized by scanning ... -
Atmospheric bromoform at Cape Point, South Africa: an initial fixed-point data set on the African continent
(EGU, 2018)Bromoform mixing ratios in marine air were measured at Cape Point Global Atmospheric Watch Station, South Africa. This represents the first such bromoform data set recorded at this location. Manual daily measurements were ... -
A Two-Decade Anthropogenic and Biogenic Isoprene Emissions Study in a London Urban Background and a London Urban Traffic Site
(MDPI, 2018-10-03)A relationship between isoprene and 1,3-butadiene mixing ratios was established to separate the anthropogenic and biogenic fractions of the measured isoprene in London air in both urban background (Eltham) and urban ... -
Compaction of a zirconium metal–organic framework (UiO-66) for high density hydrogen storage applications
(Royal Society of Chemistry, 2018)We report a rare case whereby a metal–organic framework (MOF), namely UiO-66, is compacted at high pressure ( 700 MPa or 100 000 psi) resulting in densification and improved total volumetric hydrogen storage capacity, ... -
Spectroscopic and voltammetric analysis of platinum group metals in road dust and roadside soil
(MDPI, 2018)The emission of toxic compounds by increasing anthropogenic activities affects human health and the environment. Heavy road traffic and mining activities are the major anthropogenic activities contributing to the presence ... -
A two-decade anthropogenic and biogenic isoprene emissions study in a London urban background and a London urban traffic site
(MDPI, 2018)A relationship between isoprene and 1,3-butadiene mixing ratios was established to separate the anthropogenic and biogenic fractions of the measured isoprene in London air in both urban background (Eltham) and urban ... -
Voltammetric and spectroscopic determination of rare earth elements in fresh and surface water samples
(MDPI, 2018)The increasing demand for rare earth elements in green technology, electronic components, petroleum refining, and agricultural activities has resulted in their scattering and accumulation in the environment. This study ... -
Hyphenated LC-ICP-MS/ESI-MS identification of halogenated metabolites in South African marine ascidian extracts
(The South African Chemical Institute, 2018)Extracts of 13 species of marine ascidian collected in Algoa Bay were analyzed by LC-ICP-MS/ESI-MS. This technique allows parallel analysis of the molecular species and the presence of certain elements. The LC-ICP-MS/ESI-MS ... -
Chlorine oxidation of VOCs at a semi-rural site in Beijing: significant chlorine liberation from ClNO2 and subsequent gas- and particle-phase Cl–VOC production
(European Geosciences Union (EGU), 2018)Nitryl chloride (ClNO2) accumulation at night acts as a significant reservoir for active chlorine and impacts the following day’s photochemistry when the chlorine atom is liberated at sunrise. Here, we report simultaneous ... -
Surface-modified polyacrylonitrile nanofibers as supports
(Springer Verlag, 2017)Polyacrylonitrile nanofibers (PAN-nfs) are one of the most studied nanofibres because of their excellent characteristics, such as good mechanical strength, chemical resistance, and good thermal stability. Due to the easy ... -
Peptide-functionalized quantum dots for potential applications in the imaging and treatment of obesity
(DovePress, 2018)BACKGROUND: Obesity is a worldwide epidemic affecting millions of people. The current pharmacological treatment of obesity remains limited and ineffective due to drugs’ undesirable side effects. Hence, there is a need for ... -
Synthesis of an ordered mesoporous carbon with graphitic characteristics and its application for dye adsorption
(Springer, 2013)An ordered mesoporous carbon (OMC) was prepared by a chemical vapor deposition technique using liquid petroleum gas (LPG) as the carbon source. During synthesis, LPG was effectively adsorbed in the ordered mesopores of ... -
Chemical, mineralogical and morphological changes in weathered coal fly ash: A case study of a brine impacted wet ash dump
(Elsevier, 2013)The mobility of species in coal fly ash (FA), co-disposed with brine using a wet ash handling system, from a coal fired power generating utility has been investigated. The study was conducted in order to establish if the ... -
Imino-phospine palladium (II) and platinum (II) complexes: Synthesis, molecular structures and evaluation as antitumor agents
(Elsevier, 2013)The imino-phosphine ligands L1 and L2 were prepared via condensation reaction of 2-(diphenylphosphino) benzaldehyde with substituted anilines and obtained in very good yields. An equimolar reaction of L1 and L2 with ... -
Salicylaldiminato chromium complex supported on chemically modified silica as highly active catalysts for the oxidation of cyclohexene
(Elsevier, 2013)Immobilization of chromium complexes on modified silica support was achieved via two different synthetic routes using 3-aminopropyl triethoxysilane (APTS) as a linking group. The FTIR spectra, elemental and solid-state NMR ... -
The effect of a warm electron beam on slow electron-acoustic solitons
(AIP Publishing, 2018)The effects of the inclusion of finite drift speed of a warm electron component on the existence of arbitrary amplitude slow electron-acoustic solitons are investigated in a model with ions and cool, warm, and hot electrons. ... -
A review of pharmaceuticals and endocrine-disrupting compounds: sources, effects, removal, and detections
(Springer, 2013)There are growing concerns about the increasing trends of emerging micropollutants in the environment due to their potential negative impacts on natural ecosystems and humans. This has attracted attention from both ... -
Selenium functionalized carbon for high dispersion of platinumeruthenium nanoparticles and its effect on the electrocatalytic oxidation of methanol
(Elsevier, 2013)Using selenium functionalized carbon as supports, platinumeruthenium nanoparticles were highly dispersed on the carbon surface, and showed improved electrochemical properties for methanol electrooxidation. The method ... -
Effect of growth temperature on the structural, optical and luminescence properties of cadmium telluride nanoparticles
(Springer, 2018)Cadmium telluride (CdTe) has been successfully prepared by a simple wet chemical process at different reaction temperatures. Temperature is one parameter that thermodynamically plays an important role in controlling the ...
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