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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 23 for “"Inductively Coupled Plasma Optical Emission Spectrometry"”.
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Hidrogenação de ácido levulínico a gama-valerolactona empregando fosfetos de metais de transição suportados em sílica
… N2 physisorption at -196 ˚C, X-Ray diffraction, inductively coupled plasma optical emission spectrometry, CO chemisorption and temperature programed CO desorption. Temperature programed surface reaction experiments were also performed with 30 wt% Ni2P/SiO2. The catalytic evaluation were performed …
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The development of analytical methods to elucidate the chemical forms of Cu, Zn, Cd and Pb in soil contaminated by sewage sludge and other effluents.
… interfaced to Graphite Furnace Atomic Absorption Spectrometry in order to detect the copper content of the various soil solution species. Chapter five extends the above technique to the studv of the long term partioning of copper in water extracts of sewage sludge and distillery waste polluted …
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The transfer of heavy metals through trophic levels and their toxicity effects on organisms including humans
… animal materials were extracted and analysed by inductively coupled plasma-optical emission spectrometry for the presence of heavy metals and were found to contain varying concentrations of lead, copper, arsenic, tin, tungsten and zinc. Laboratory investigations followed to determine the toxicity …
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Synthesis, Characterization and Activity of Palladium Catalysts on the Dual Support of Cerium and Aluminum Oxides
… had 4.7 wt.% Pd and 10.7 wt.% Ce based on inductively coupled plasma optical emission spectrometry (ICP-OES) analysis. The catalysts were characterized by pulse chemisorption, temperature programmed reduction (TPD), scanning transmission electron microscopy (STEM), and X-ray photoelectron …
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Preparation and characterisation of inorganic nanostructured support materials for polymer electrolyte fuel cells
… (TEM), Scanning Electron Microscopy (SEM) and Inductively Coupled Plasma Optical emission spectrometry (ICP-OES). Platinum effectively deposited on the TiB2 support structures via these deposition techniques within two standard deviations of the desired Pt loadings.
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Novel mechanisms for buffering the haemodynamic effects of dietary salt and the relevance of skin sodium in humans
… The technique of measuring skin Na+ and K+ using inductively coupled plasma optical emission spectrometry was developed in a pilot study of healthy adults. In a further study in healthy adults, the effects of dietary salt modulation on skin Na+, the effect of sex and the relationship between skin …
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Monometallic and multimetallic complexes as precatalysts in the hydroformylation of olefins
… spectroscopy, infrared spectroscopy, mass spectrometry and melting point determinations. The mononuclear and trinuclear complexes were successfully evaluated as catalyst precursors in the hydroformylation of higher olefins. The reaction conditions were optimised using the mononuclear …
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Comprehensive Characterization of Nickel-Based Metallic Foams and Their Applications as Electrocatalyst Materials
… to evaluate the Aecsa of the deposited Pt, and inductively coupled plasma optical emission spectrometry (ICP-OES) to determine the mass of deposited Pt. The Pt / Ni foams are applied as electrocatalysts for hydrogen evolution, hydrogen reduction, oxygen evolution, and oxygen reduction reactions …
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Polymer- and Bioadditives-Assisted Synthesis and Surface Modification of Anisotropic Gold Nanocrystals
… seeded methods to prepare AuNRs and tune their optical properties to shorter or longer wavelengths by introducing bioadditives or small thiolated molecules such as reduced and oxidized glutathione, L-cysteine, and L-methionine once the growth has been initiated. Chapter 4 presents an improved …
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Controlled Release System for Localized and Sustained Drug Delivery Applications
… (FTIR), atomic force microscopy (AFM) and inductively coupled plasma optical emission spectrometry (ICP-OES) were used to characterize the controlled release system. Additionally, the in vitro drug release was monitored by ultraviolet-visible spectrophotometry (UV-Vis) and liquid …
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Demulsification and recycling of spent oil based drilling fluid as nanofiller for polyamide 6 nanocomposites.
… for total petroleum hydrocarbon (TPH) analysis, inductively-coupled plasma optical emission spectrometry (ICPOES) for quantitative elemental analysis, and energy dispersive X-ray analysis (EDXA) for qualitative elemental composition - amongst other characterisation methods. The analysis showed …
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Quantitative Trait Locus Analysis of Iron Deficiency Chlorosis in Soybean
… and total Fe contents using atomic absorption spectrometry and inductively coupled plasma-optical emission spectrometry (ICP-OES). Simple sequence repeat (SSR) markers were screened for polymorphism between the cultivated and wild soybean lines to genotype the RILs to construct a linkage map. …
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Microstructure characterization of foamed cement and concrete
… namely energy-dispersive X-ray spectroscopy, inductively coupled plasma optical emission spectrometry, CHN analysis and X-ray fluorescence were studied. The composition of foamed and air-entrained cement samples was analyzed before and after a ‘cleaning’ process (samples were cleaned in …
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Enhancing the photoelectrochemical water splitting characteristics of titanium and tungsten oxide based materials via doping and sensitization
… charge collection and efficiency. Thusto improve optical absorption and charge separation, it is necessary to modify the band gap with low band gap materials.The two approaches followed for modification of band gap are doping and sensitization. Here, TiO2 and WO3 based photoanodes were sensitized …
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DETERMINATION OF CONTAMINANTS IN FISHERY PRODUCTS TO SUPPORT FOOD SAFETY
… techniques, such as Liquid Chromatography coupled to High-Resolution Mass Spectrometry (LC-HRMS), Gas Chromatography tandem Mass Spectrometry (GC-MS/MS), Inductively coupled plasma-optical emission spectrometry (ICP-OES) and Fourier-transform infrared spectroscopy (μFT-IR), to investigate …
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Untersuchungen zur Metallhomöostase in Arabidopsis thaliana
… Mitglieder exportieren Metalle aus dem Zytoplasma – entweder in zelluläre Kompartimente oder aus der Zelle heraus. Von den zwölf Mitgliedern dieser Familie in Arabidopsis thaliana (A. thaliana) – Metall Toleranz Protein (MTP)-1 bis -12 – wurden bisher AtMTP1 und AtMTP3 charakterisiert. In …
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The use of esterase activity as a measure of copper toxicity in marine microalgae
… flasks: analysis of bioavailable Cu by inductively coupled plasma optical emission spectrometry (ICP-OES) proved that there was no Cu binding of any nominal Cu concentrations over time. Therefore, differences are likely due to stagnation of esterase activity upon transfer from the flasks …
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Trace element concentrations in geothermal springs and their impact on soil and vegetation in Siloam and Tshipise
… vanadium (V), and zinc (Zn) were determined by inductively coupled plasma – mass spectrometry (ICP-MS) (Agilent 7700 series). Concentrations of calcium (Ca), magnesium (Mg), sodium (Na) and potassium (K) were analysed using inductively coupled plasma – optical emission spectrometry (ICP-OES) (X …
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Assessment of gentle remediation options for trace element-contaminated agricultural land under semi-controlled and field conditions
… to the groundwater, and tilling-related dust emissions. The overall aim was to find best management practices for coupling soil remediation with the production of marketable biomass. This was attempted via (i) in situ stabilization, alone (chapter 4.1) or combined with phytoexclusion (chapter …
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