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Showing 1 to 20 of 36 for “"Laser Ablation Inductively Coupled Plasma Mass Spectrometry"”.
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Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) as a Biomonitoring Tool
Using laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) this research analyzed human cadaver hair for gadolinium and mice hair samples for cadmium. This project combined fundamental bench science (analytical chemistry and animal studies), and insight into exposures to an …
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Fundamental Studies of Femtosecond Laser Interactions with Solids and Their Applications to Laser Ablation Inductively Coupled Plasma Mass Spectrometry for Environmental Analysis
Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) has been successfully applied in many research areas. Compared to conventional analytical techniques, it has the advantages of minimum sample preparation and high spatial resolution capabilities. Elemental and isotopic …
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The geochemistry of a suite of eclogite xenoliths from the Rietfontein Kimberlite, South Africa
… trace element compositions were determined by Laser Ablation Inductively-Coupled-Plasma Mass Spectrometry (LA-ICP-MS) techniques. Oxygen isotopic compositions of five garnet samples were obtained using laser flourination techniques, followed by analysis by gas source mass spectrometry.
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Determination of trace elements levels in human plasma and radiated mice tongue by inductively coupled plasma-mass-spectrometry (ICP-MS)
… method that uses a minimum150 μL of human plasma samples for the trace elements Fe, Cu, Zn, Mg and ultratrace elements Mn, Co, Cd, Pb was developed. The method was evaluated using both high resolution sector field (ICP-SFMS) and quadrupole (ICP-QMS) inductively coupled plasma mass …
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Economic Potential of Rare Earth Elements Within Accessory Minerals of Granitic Pegmatite Mine Tailings
… process. Sample characterization utilized laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS), X-ray fluorescence (XRF), energy-dispersive X-ray spectrometry (EDS), and X-ray diffraction (XRD). The results of this investigation support the conclusion that, at the current …
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Dealing with contaminated land in the ‘New Regime’: an appraisal of the use of plants as biomonitors for metal contamination analysis and risk assessment for a former landfill site in Greenwich
… in the growth rings. This was examined using Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LAICPMS) and Proton Induced X-Ray Emission (PIXE). From the plant analysis, the elements present in highest amount were lead, zinc and cooper. The mobility of lead could be monitored by …
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Trace Element Geochemistry of Compositionally Layered Impact Spherules
… Energy Dispersive X-ray Spectroscopy (EDS) and Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) to measure major, trace, and rare earth element (REE) concentrations. Backscatter Electron (BSE) images and elemental X-ray maps indicate a range of compositional differences …
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Recent extreme events in a tropical stalagmite: Multi-proxy records and analysis of ecosystem delta carbon-13 value sensitivity to weak climate forcing
… of the El Chichon eruption, validated by both Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICPMS) and Scanning X-ray Fluorescence (S-XRF). A dominant, broad spectrum trace element perturbation was recorded by both methods at 1982, coincident with a major explosive eruption of …
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Advances in understanding melt-affected firn and ice cores from the polar regions
… 3D X-ray scans, in-situ experiments, and laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). In this thesis, I first give an introduction to the formation, structural characteristics, and chemical interpretation potential of refrozen melt sections based on an extensive …
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Trace element behaviour in a LCT-pegmatite with rare-element mineralization : the Luolamäki pegmatite, a case study
… electron probe microanalyzer (EPMA) and with laser ablation inductively coupled plasma mass spectrometry analysis (LA-ICP-MS). Quartz and three other salient rock-forming mineral groups, feldspars, micas and tourmalines were chosen for analysis. The Luumäki pegmatite is classified as belonging …
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Assessing Movement of Fish Through Spectral Analysis of Otolith Life History Scans
… striata</em>) were sampled using laser ablation inductively coupled plasma mass spectrometry (LA-ICPMS).</p> <p>For Atlantic croaker, spectral analyses of the data estimate the timing of ingress at 68 days on average using strontium and 85 days using barium. Based on the inflection …
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Compositional Analysis of the Martian Meteorites Northwest Africa 6342 and Northwest Africa 10961
… bulk elemental composition calculation, and laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) were used to analyze the composition and petrology of two distinct but related shergottites. The Martian meteorite Northwest Africa (NWA) 6342 recovered from Algeria in 2010 and …
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Maturation, Fecundity, and Spawning Frequency of the Albemarle/Roanoke Striped Bass Stock
… and methodologies. Otoliths were examined using Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) to determine changes in concentrations of the element ⁸⁸Sr over the life of the fish that reflect high salinity or freshwater environments and fish were assigned residency …
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Cell proliferation and metal accumulation in the subventricular zone and olfactory bulb in Parkinson’s disease
… in the brain. In the second half of this thesis, laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) was employed to compare localised metal concentrations in normal and PD brains for the first time, and a data analysis pipeline was developed to display the resulting data. This …
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Uncovering the role of biomineralisation in otolith trace element uptake by microstructural and microchemical analysis
… to the L-zone bands. Further examination by laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) showed that incorporation of Mg and Ba appears independent of both the S distribution and the growth patterns in all four species. The results suggest that element incorporation …
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Recalibrating the breakup history of SW Gondwana: the first U-Pb chronostratigraphy for the Uitenhage Group, South Africa
… volcaniclastic and sedimentary rocks by Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICPMS), this thesis presents the first radioisotopic ages for the Uitenhage Group and provides a new chronostratigraphic framework for the onshore Jurassic – Cretaceous in the southern …
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Rhodoliths as environmental archives in the tropics
… were chosen for this project. The use of laser ablation inductively coupled plasma mass spectrometry (LA-ICPMS) permitted to investigate the distribution pattern of Mg across single rhodolith branches. The combination of LA-ICPMS analyses with alizarin red S staining and radiocarbon dating …
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Rhodoliths as environmental archives in the tropics
… were chosen for this project. The use of laser ablation inductively coupled plasma mass spectrometry (LA-ICPMS) permitted to investigate the distribution pattern of Mg across single rhodolith branches. The combination of LA-ICPMS analyses with alizarin red S staining and radiocarbon dating …
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Testing the driving mechanisms for exhumation of the Greater Himalayan zone in eastern Bhutan: Implications of split-stream zircon and monazite geochronology
… and trace-element abundances using split-stream laser-ablation inductively coupled plasma mass spectrometry (LA-ICPMS). Cathodoluminescence images of the zircons typically revealed three generations of crystallization: (1) an inherited or prograde-to-peak metamorphic core; (2) an …
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