Дисертації з теми "Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS)"
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Castro, Waleska. "Elemental Analysis of Biological Matrices by Laser Ablation High Resolution Inductively Coupled Plasma Mass Spectrometry (LA-HR-ICP-MS) and High Resolution Inductively Coupled Plasma Mass Spectrometry (HR-ICP-MS)." FIU Digital Commons, 2008. http://digitalcommons.fiu.edu/etd/185.
Повний текст джерелаSubedi, Kiran. "Elemental Analysis of Printing Inks Using Tandem Laser- Induced Breakdown Spectroscopy and Laser Ablation Inductively Coupled Plasma Mass Spectrometry." FIU Digital Commons, 2015. http://digitalcommons.fiu.edu/etd/2263.
Повний текст джерелаDouglas, David N. "Development of a high speed, high efficiency LA-ICP-MS interface." Thesis, Loughborough University, 2013. https://dspace.lboro.ac.uk/2134/12164.
Повний текст джерелаGorishek, Emma Lee. "Laser Ablation Inductively Coupled Plasma Mass Spectrometry and Raman Spectroscopy Imaging of Biological Tissues." Thesis, University of North Texas, 2016. https://digital.library.unt.edu/ark:/67531/metadc849725/.
Повний текст джерелаManagh, Amy J. "Single-cell tracking of therapeutic cells using Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry." Thesis, Loughborough University, 2014. https://dspace.lboro.ac.uk/2134/16723.
Повний текст джерелаNaes, Benjamin E. "Elemental Analysis of Glass and Ink by Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) and Laser Induced Breakdown Spectroscopy (LIBS)." FIU Digital Commons, 2009. http://digitalcommons.fiu.edu/etd/207.
Повний текст джерелаBartle, Emma Kathleen. "Provenance establishment and authentication of South-East Asian ceramics using laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS)." University of Western Australia. Centre for Forensic Science, 2009. http://theses.library.uwa.edu.au/adt-WU2009.0104.
Повний текст джерелаJantzi, Sarah C. "Elemental Analysis and Forensic Comparison of Soils by Laser-Induced Breakdown Spectroscopy (LIBS) and Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS)." FIU Digital Commons, 2013. http://digitalcommons.fiu.edu/etd/967.
Повний текст джерелаReid, Joy Emily. "The development and geological application of a whole rock-LA-ICP-MS technique for the determination of high field strength elements." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0004/MQ42434.pdf.
Повний текст джерелаVeinott, G. "Elemental concentrations in the fin rays of white sturgeon, Acipenser transmontanus, by laser ablation sampling-inductively coupled plasma-mass spectrometry (LAS-ICP-MS)." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq40492.pdf.
Повний текст джерелаCoish, Diane Wanda. "Applicability of laser ablation and partial dissolution ICP-MS techniques on Mn-Fe-oxide coatings of stream pebbles to mineral exploration and environmental monitoring." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0033/MQ62378.pdf.
Повний текст джерелаWu, Shitou [Verfasser], Gerhard [Akademischer Betreuer] [Gutachter] Wörner, and Klaus [Gutachter] Simon. "Laser Ablation-Inductively Coupled Plasma-Mass Spectrometer (LA-ICP-MS) in Geosciences: Further Improvement for Elemental Analysis / Shitou Wu ; Gutachter: Gerhard Wörner, Klaus Simon ; Betreuer: Gerhard Wörner." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2017. http://d-nb.info/113991121X/34.
Повний текст джерелаPhukphatthanachai, Pranee. "Development and Application of IDMS Based Procedure for total Sulphur in Copper Metals and Its Alloys." Doctoral thesis, Humboldt-Universität zu Berlin, 2019. http://dx.doi.org/10.18452/19851.
Повний текст джерелаSulphur quantification in copper and other pure metals in the past revealed a lack of SI-traceability and also showed inconsistent results, when different methods are compared. Therefore, a reference procedure is required to enable SI-traceable measurement results accompanied by a sound uncertainty budget. In this study, such a procedure was developed for the quantification of total sulphur in copper using inductively coupled plasma-isotope dilution mass spectrometry (ICP-IDMS). For solving these problems ion exchange chromatography was applied, and a sulphur-matrix separation procedure was developed. This procedure was combined with ICP-IDMS to solve difficulties with the calibration and to realize metrological concepts. An application of the IDMS procedure was realized by using the measurement results of specific copper samples values for calibrating glow discharge mass spectrometry (GDMS) and laser ablation ICP-MS (LA-ICP-MS). Both techniques are considered routine techniques. Thus, they could provide reliable results which are traceable to the SI. Additionally, a procedure based on LA-ICP-IDMS was developed to significantly reduce the sample preparation step of ICP-IDMS with sulphur-matrix separation. This procedure is less laborious and the measurement results are still SI traceable and offer a comparatively high accuracy for LA-ICP-MS. Key for this development was the innovative application of polyethylene frits as support material for the dissolved sample. Thus, the quantification of sulphur in copper samples by LA-ICP-IDMS could be realized. The essential parameters are investigated such as the absorption efficiency of the frit and matrix effects. The developed procedure was fully validated by means of the ICP-IDMS results.
Marín, Aznar Eva. "Desenvolupament i evolució d’un sistema modificat de LA-ICP/MS per la caracterització no destructiva d’obres del Patrimoni Cultural." Doctoral thesis, Universitat de Barcelona, 2015. http://hdl.handle.net/10803/380159.
Повний текст джерелаLaser Ablation -ICP/MS is a technique which presents certain advantages regarding analysis of objects from Cultural Heritage field. In one hand the Laser Ablation device provides and alternative sampling procedure that may be more suitable for the analysis in this context. On the other hand the use of the ICP/MS as a detector, allows for the determination of the elemental composition in a wide range of concentrations with a minimum amount of material required. Nevertheless, its use for the material characterization of Cultural Heritage objects is highly restricted and only some experiences are published on the field of ceramic objects, metallic and some few cases study in manuscript analysis, but not on the analysis of paintings. One of the main drawbacks is the dimensions of the objects. As a consequence there are no commercially available instruments for LA-ICP/MS, including ablation cell, that permit the analysis of large objects like artworks neither Laser Ablation systems for “in situ” sampling had not been described until recently. From an analytical point of view, there are two primary concerns when characterizing works of art composition: the heterogeneity in the distribution of the components, at the macro and micro levels, and the need to preserve the physical integrity of each object In order to accomplish the analysis of objects regardless their size and material heterogenic composition, a specific optical system and ablation cell have been designed and coupled to the ICP/MS. The whole system has been applied on two different type of objects, easel Painting and Manuscripts, and some capabilities for each application evaluated. The capability of the developed LA-ICP/MS system for the analysis of paintings was evaluated in terms of damage produced on the artwork and its potential for stratigraphic composition determination by analyzing real painting such as the portrait of a member of the Medici Family attributed to Jacopo Pontormo, and a mannerist painting attributed to Jan Massys. Regarding the application to Manuscripts the main objective was the characterization of the original material composition and the effects of some restoration interventions in the pH, corrosion and degradation, evaluating the superficial resolution and the possibility to perform maps of the distribution. Results were compared with those obtained by SEM/EDX and FTIR.
Wu, Shitou. "Laser Ablation-Inductively Coupled Plasma-Mass Spectrometer (LA-ICP-MS) in Geosciences: Further Improvement for Elemental Analysis." Doctoral thesis, 2017. http://hdl.handle.net/11858/00-1735-0000-0023-3EF8-1.
Повний текст джерелаHubbard, Dale A. "A paleogeochemical investigation of ferromanganese oxyhydroxides from the Mendocino Ridge using laser ablation inductively-coupled plasma mass spectrometry (LA ICP-MS) /." 1999. http://hdl.handle.net/1957/12082.
Повний текст джерелаGaudreau-Balderrama, Amanda. "Methods and algorithms for quantitative analysis of metallomic images to assess traumatic brain injury." Thesis, 2017. https://hdl.handle.net/2144/23684.
Повний текст джерела2019-07-09T00:00:00Z
Jones, Meaghan Elisabeth. "Trace element analysis of human tooth enamel by laser ablation-inductively coupled plasma-mass spectrometry for estimation of region of origin." Thesis, 2014. https://hdl.handle.net/2144/14378.
Повний текст джерелаGeorge, L. L. "Trace and minor elements in galena: a reconnaissance LA-ICP-MS study." Thesis, 2013. http://hdl.handle.net/2440/100088.
Повний текст джерелаMany minor/trace elements can substitute into the crystal lattice of galena at various concentrations. In-situ LA-ICP-MS analysis and trace element mapping are used to obtain minor/trace element data from a range of natural galena specimens aiming to enhance understanding of the governing factors that control minor/trace element partitioning. The coupled substitution Ag+ + (Bi, Sb)3+ ↔ 2Pb2+, is confirmed by data obtained, although when Bi and/or Sb are present at high concentrations (~> 0.002 mol.%), site vacancies most likely come into play through the additional substitution 2(Bi, Sb)3+ + □ ↔ 3Pb2+. Galena is the primary host of Tl in all mapped mineral assemblages. Thallium is likely incorporated into galena along with Cu through the coupled substitution: (Ag, Cu, Tl)+ + (Bi, Sb)3+ ↔ 2Pb2+. Tin can reach significant concentrations in galena, particularly when the latter formed via metamorphic recrystallisation. Tin is concentrated in galena, likely via the substitution: Sn4+ + □ ↔ 2Pb2+, involving the creation of lattice vacancies, or Sn2+ ↔ Pb2+. Tin and In concentrations show a strong positive correlation across the sample suite indicating that the availability of these elements is intimately linked in natural systems. Cadmium and minor Hg can be incorporated into galena; the simple isovalent substitution (Cd, Hg)2+ ↔ Pb2+ is inferred. Significant oscillatory compositional zoning, and lesser sector zoning of minor/trace elements (Ag, Sb, Bi, Se, Te) is confirmed, for the first time, in galena from two epithermal ores. Zoning is attributed to slow crystal growth into open spaces within the vein at relatively low temperatures. The datasets generated increase understanding of the nature and distribution of minor/trace elements in galena, and partitioning between galena and coexisting minerals. These data have several applications in the minerals industry, particularly in studies of mineral deposit genesis, ore processing and, potentially, also in mineral exploration.
Thesis (B.Sc.(Hons)) -- University of Adelaide, School of Physical Scences, 2013
Song, Rhan-Ju. "Reconstructing infant diet and weaning behavior of ancient Maya from Lamanai, Belize using laser ablation -inductively coupled plasma -mass spectrometry (LA-ICP-MS)." 2004. https://scholarworks.umass.edu/dissertations/AAI3152747.
Повний текст джерелаVorster, Clarisa. "Laser ablation ICP-MS age determination of detrital zircon populations in the Phanerozoic Cape and Lower Karoo Supergroups (South Africa) and correlatives in Argentina." Thesis, 2014. http://hdl.handle.net/10210/8789.
Повний текст джерелаThe successions of the Cape- and Karoo Supergroups preserve an integrated history of sedimentation along the paleo-Pacific margin of Gondwana from the Paleozoic to the Early Mesozoic. The Cape- and Karoo Supergroups have been well studied with regard to stratigraphy, sedimentary facies and depositional environment. However, the nature and location of their source regions, especially for the changeover from deposition within an Atlantic-type continental margin basin for the successions of the Cape Supergroup to an Andean-type continental foreland basin for some of the units of the Karoo Supergroup, remains poorly understood. In order to shed light on the nature of these source regions, a comprehensive U-Pb detrital zircon study of the successions of the Cape- and lower Karoo Supergroups was launched. A representative number of samples from the upper and lower successions of the Table Mountain- Bokkeveld- and Witteberg Groups of the Cape Supergroup as well as the Dwyka and Ecca Groups of the Karoo Supergroup were collected throughout the western, southwestern and southern Cape region. A few samples of the Dwyka Group were also collected within the more eastern outcrop regions of the succession located in Kwazulu-Natal. The sedimentary rocks of the Natal Group and Msikaba Formation have long been regarded as coeval with the Cape Supergroup. Similar to the successions of the Cape- and Karoo Supergroups, very little is known about their sedimentary source regions. Also, their relative age of sedimentation remains poorly constrained. The U-Pb detrital zircon study of the successions of the Cape- and lower Karoo Supergroups was thus extended so as to include the successions of the Natal Group and Msikaba Formation. The detrital zircon age populations of the successions of the Natal Group and Msikaba Formation would not only improve the present understanding with regards to the sedimentary source regions to these units but would also facilitate the evaluation of possible correlations between these units and the stratigraphic units of the Cape Supergroup. Samples of both the lower Durban Formation and the upper Mariannhill Formation of the Natal Group and the Msikaba Formation (which is presently regarded as being part of the Cape Supergroup) were therefore collected within their respective outcrop regions in the Kwazulu-Natal area. The similarities in litho- and bio-stratigraphy between the successions of the Cape- and Karoo Supergroups and those of the Ordovician to Early Permian successions of the Ventania System and the Ordovician to Silurian successions of the Tandilia System in Argentina have long been recognized. Although the detrital zircon populations of some of the formations within these Systems have been evaluated in the past, it is yet to be determined whether these successions and those of the Cape- and lower Karoo Supergroups have certain source regions in common. In order to facilitate such a comparison, samples of selected units of the Ventania System were therefore collected near Sierra de la Ventania, while a sample of the Balcarce Formation of the Tandilia System was obtained near Mar del Plata. The detrital zircon age populations of the successions of the Ventania and Tandilia Systems were also further evaluated in the light of establishing or confirming a time-correlation between these formations and those of the Cape- and lower Karoo Supergroups. U-Pb age determination of the detrital zircons population of the samples was conducted by means of Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry (LA-ICP-MS). Although LA-ICP-MS is a routine, well-established technique where the U-Pb age determination of detrital zircons is concerned, it was yet to be established at the centralized analytical facility of the University of Johannesburg, SPECTRUM, using the instrumentation currently available (i.e. 213nm Nd:YAG laser coupled to Quadrupole-based ICP-MS). The U-Pb age determination of detrital zircons was therefore preceded by a fair amount of instrument optimization and method development. Well studied shortcomings of U-Pb detrital zircon dating by LA-ICP-MS such as laser induced elemental fractionation, mass discrimination effects and as well as the possible occurrence of minor common-Pb needs were addressed and corrected for. The detrital zircon populations of successions in the Cape Supergroup have a distinct major Neoproterozoic to Early Cambrian age component, which can be attributed to an input of detritus from successions related to the Pan-African Orogeny in South Africa, such as the Gariep- and Saldania Belts located towards the north of the Cape Basin. A substantial amount of Mesoproterozoic detrital zircon grains is also present in all the samples from the successions of the Cape Supergroup. These grains of Mesoproterozoic age were probably derived from the Namaqua-Natal Metamorphic Province, which is also regarded as the source of some minor amounts of Paleoproterozoic detrital zircon grains. The near absence of Archean grains from the detrital zircon populations of the successions of the Cape Supergroup is notable, and is thought to be due to the Namaqua-Natal Metamorphic Province acting as a geomorphological barrier at the time of their deposition. The minor Paleozoic (Ordovician to Carboniferous) detrital zircon populations in the samples from the formations of the Cape Supergroup increase progressively upwards through the succession. ....
Ogilvie, A. L. "Textural and LA-ICP-MS trace element chemistry analysis of pyrite and chalcopyrite from Telfer Au-Cu deposit, W.A.: implications for a multi-source ore system." Thesis, 2014. http://hdl.handle.net/2440/110492.
Повний текст джерелаThe Telfer Au-Cu deposit, Paterson Province, W.A. is hosted within two doubly-plunging anticlines, the Main Dome and the West Dome. The deposit consists of vertically-stacked, stratabound Au-Cu mineralised horizons ('reefs') linked by associated stockwork, sheeted and discordant veins. The study targeted a better petrographic, mineralogical and geochemical understanding of pyrite and chalcopyrite in E-Reefs mineralization with the objective of placing additional constraints on ore genesis. Particular emphasis is placed on Type-4 pyrite as defined by Fargher (2012), notably the speciation of mineral inclusions within this type and their significance for a genetic model involving granitoid-sourced fluids. The trace element chemistry of the associated chalcopyrite was characterised by Laser-Ablation Inductively-Coupled Plasma Mass-Spectrometry (LA-ICP-MS) to identify whether a similar signature is present. Back-scatter electron imaging established a number of mineral associations and inclusions within pyrite and chalcopyrite. These define a pronounced Sn-Bi-Ag geochemical signature in the E-Reefs. LA-ICP-MS data for pyrite, and particularly chalcopyrite, from the E-Reefs exhibit the same Sn-Ag-Bi geochemical signature and are indicative of a granitophile character. Such a signature is unlike that of the Middle Vale Reef. Arsenopyrite- and gersdorffite-bearing assemblages within crosscutting veins indicate a superposed hydrothermal event, in which additional elements, like As, were introduced to the system. There is also evidence of extensive ore remobilisation as the result of a later thermal event. These findings support a modified model of ore genesis for the Telfer deposit in which not all components in the ore fluid were leached from the surrounding sedimentary rocks but also involve fluids from adjacent granites. This has application not only to the Telfer deposit but carries implications for other ore systems in the Paterson Province. Results also contribute to ongoing work 'fingerprinting' chalcopyrite from different ore types to establish a basis for discriminating metal sources and fluid evolution.
Thesis (B.Sc.(Hons)) -- University of Adelaide, School of Physical Sciences, 2014