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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 368 for “"ICP-MS"”.
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FUNDAMENTAL AND APPLIED MEASUREMENTS IN ICP-MS
Fundamental and applied aspects of ICP-MS have been investigated to gain an increased understanding of the technique and improve on its analytical capabilities. Dissociation temperatures of polyatomic ions were calculated using a double-focusing sector instrument, to obtain more reliable mass …
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Fundamental studies of mixed gas plasmas in ICP-MS
… using both wet and dry sample introduction systems. Simplex optimization procedures have been used throughout. The addition of nitrogen to all three argon gas flows of the ICP was evaluated, and the instrumental operating conditions were optimized to allow for the maximum removal of the ArCl+ …
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Determination of actinide elements in environmental samples by ICP-MS
… inductively coupled plasma mass spectrometry (ICP-MS). Initial applications utilised a commercially available resin, namely TRU-Spec resin, for efficient removal of the matrix prior to elution of uranium and thorium analytes. Comparative analyses of reference materials and natural water samples …
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Environmental speciation of tin and lead by HPLC-ICP-MS
… inductively coupled plasma-mass spectrometer (ICP-MS) for this application has been modified to yield limits of detection of 0.44,0.26,1.4 and 0.23 ng. g-' as Sri for TBT, TPhT, DBT and MBT respectively. Different extraction procedures have been tested for the determination of organotin species …
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Análisis de pequeñas estructuras mediante ICP-MS: desarrollo metodológico y aplicaciones
… desarrollo de metodologías analíticas basadas en ICP-MS para el análisis de pequeñas estructuras como células y nanopartículas de forma individual. Para ello, se han utilizado equipos de ICP-MS con distintos analizadores de masa equipados con diferentes sistemas de introducción de muestra, …
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Determination of trace elements in crude oils by ICP-MS using detergent microemulsion.
A method was developed and evaluated in terms of its analytical performance for the determination of Ti, V, Cr, Mn, Ni, Cu, Mo, Cd, Sn and Pb concentrations in three Libyan crude oil samples using ICP-MS. The samples were introduced to the plasma after the formation of microemulsions in which …
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Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) as a Biomonitoring Tool
… 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 emerging contaminant. …
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ANALYSIS OF PHARMACEUTICALS AND BIOMOLECULES USING HPLC COUPLED TO ICP-MS AND ESI-MS
… thesis explores the use of HPLC coupled with ICPMS and ESI-MS in order to develop novel methods which overcome specific analytical challenges in the pharmaceutical industry. A membrane desolvation interface has been evaluated for coupling high performance liquid chromatography (HPLC) with …
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THE INTERFERENCE FREE DETERMINATION OF SELENIUM IN ENVIRONMENTAL AND CLINICAL SAMPLES BY ICP-MS
… in environmental and clinical samples by ICP-MS is complicated by both poor sensitivity and severe interferences resulting from both the sample matrix and the argon plasma. The purpose of this study was to investigate ways of overcoming these problems thus enabling Se to be determined both …
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The development of methods for the determination of selenium using spectrofluorimetric and ICP-MS techniques.
… between the results of the fluorimetric and ICP-MS methods was obtained when a reference material, TMDA 51.2 supplied by National Water Research Institute Environment Canada and three nutritional supplements were analysed.A novel automated fluorimetric method for the simultaneous …
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XCT, SEM, and LA-ICP-MS map investigation of chondrule FGRS in CM2 Aguas Zarcas
… investigates the formation of fine-grained rims (FGRs) and their relationship to the matrix in CM2 Aguas Zarcas (AZ), combining scanning electron microscopy (SEM), X-ray computed tomography (XCT), and laser-ablation inductively coupled plasma mass spectroscopy (LA-ICP-MS) analyses, enabling a …
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Provenance and Tectonic Implications of LA-ICP-MS Zircon Depth-Profiling, Nanaimo Basin, British Columbia, Canada
… and Montana), or the Mojave-Sonoran Region (MSR) of the southwestern US and northern Mexico. We distinguish between these potential non-CPC sediment source areas by combining sandstone petrographic observations with detrital zircon depth-profiling of thin zircon rims observed on >30% of …
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Evaluación financiera para la adquisición de un analizador ICP-MS para metales en agua en "Laboratorios Ambientales S.A.C."
… de Masa con Plasma Acoplado Inductivamente (ICP-MS) por la empresa Laboratorios Ambientales S.A.C., la adquisición de esta maquinaria tiene el propósito de optimizar el análisis de metales pesados en agua, de esta manera fortalecer su competitividad y reconocimiento en el sector de servicios …
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Determination of trace elements levels in human plasma and radiated mice tongue by inductively coupled plasma-mass-spectrometry (ICP-MS)
… using both high resolution sector field (ICP-SFMS) and quadrupole (ICP-QMS) inductively coupled plasma mass spectrometry to analyze trace elements in Seronorm® quality control materials. This analytical method was used to analyze 1900 plasma samples for trace elements and ultra-trace …
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