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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 8 of 8 for “"isotope dilution mass spectrometry"”.
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The Mathematics behind Speciated Isotope Dilution Mass Spectrometry
Speciated Isotope Dilution Mass Spectrometry (SIDMS) allows researchers to measure the concentrations of species -- usually elemental -- in a sample by solving a system of non-linear equations. This thesis explores multiple mathematical methods to solve SIDMS equations, and compares the properties …
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The Development of High Accuracy Methods for the Measurement of Metal Speciation
… the potential for performing species-specific isotope dilution mass spectrometry (ssIDMS) analysis of a protein. A ®^Cu enriched copper binding Rc spike was prepared from Rc produced using a bacterial recombinant system. The stability of the ®^Cu binding spike was investigated using both …
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Statistical analysis of renal function in patients with cancer
… methods, such as standard- ising creatinine to isotope dilution mass spectrometry (IDMS). Given that the method for creatinine measurement affects the reported laboratory value, the CamGFR model was adjusted to allow use for creatinine, which was or was not IDMS standardised. Further analyses …
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UNCERTAINTY CONTRIBUTIONS TO SPECIES SPECIFIC ISOTOPE DILUTION ANALYSIS
… and quadrupole (Q) inductively coupled plasma mass spectrometry (ICP-MS) for species specific isotope dilution mass spectrometry (IDMS). 199Hg enriched methylmercurychloride has been synthesised and recovered in the solid form for use as a spike material. The stability of methylmercury during …
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Analysis of Illicit Drugs, Their Metabolites and Other Micropollutants in Water by Liquid Chromatography Tandem Mass Spectrometry
… is to develop liquid chromatography tandem mass spectrometry (LC/MS/MS) methods for the analysis of different, novel micropollutants in waste water and natural water. Micropollutants are compounds that can exert adverse environmental and human health effects at low concentrations. Most of …
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Mercury methylation potentials in sediments an ancient cypress wetland using species-specific isotope dilution-GC-ICP-MS: Analytical method development and the effect of sorbent amendments
… solids using inductively coupled plasma mass spectrometry (ICP-MS) with online sample ashing. The method combines a direct mercury analyzer (DMA) that is based on sample combustion, Hg pre-concentration by amalgamation with gold, and atomic absorption spectrometry (AAS), with a high …
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Isotopic studies of selenium in environmental samples.
… Se concentration in samples was determined using isotope dilution - mass spectrometry by gas chromatography - mass spectrometry (GC-MS). This was the first application of the determination of Se in environmental samples and the use of a benchtop GC-MS for those analyses. Samples were spiked with …
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Zastosowanie spektrometrii mas rozcieńczenia izotopowego w analizie specjacyjnej chromu w wodzie techniką sprzężoną HPLC/ICP-MS
Chrom jest pierwiastkiem wzbudzającym duże zainteresowanie w dziedzinie analizy specjacyjnej ze względu na przeciwstawne właściwości jego form chemicznych. Cr(III) uważany jest za niezbędny mikroskładnik odżywczy, gdyż warunkuje prawidłowe funkcjonowanie naszego organizmu, wspomagając metabolizm …