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• (repositories = "Publikationer från Umeå Universitet" AND publisher = "Umeå : Kemi" AND subject = "speciation")
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repositories = "Publikationer från Umeå Universitet" > : "Umeå : Kemi" (x) > : "speciation" (x)
1

Found 7 documents, displaying page 1 of 1

Solubility and Surface Complexation Studies of Apatites

Author(s) : Bengtsson, Åsa
Description : Apatites are a diverse class of phosphate minerals that are important in a great variety of natural and industrial processes. They are, for example, used as raw material in fertiliser production and in the remediation of metal-contaminated soils. Hydroxyapatite Ca5(PO4)3OH, (HAP) and fluorapatite Ca...
Repository : Publikationer från Umeå Universitet
Language(s) : English

Modeling of glyphosate and metal-glyphosate speciation in solution and at solution-mineral interfaces

Author(s) : Jonsson, Caroline
Description : Glyphosate (N-(phosphonomethyl)glycine, PMG, H3L) is a widely used organophosphorous herbicide. It interacts with metal ions and mineral surfaces, which may affect its mobility, degradation and bioavailability in the environment. However, these interactions are far from fully understood. This thesis...
Repository : Publikationer från Umeå Universitet
Language(s) : English

Mercury species transformations in marine and biological systems studied by isotope dilution mass spectrometry and stable isotope tracers

Author(s) : Lambertsson, Lars
Description : This thesis focuses on the implementation of species-specific isotope dilution (SSID) methodology and stable isotope tracers to determine mercury species occurrence and transformation processes in-situ and during sample treatment. Isotope enriched tracers of methyl-, ethyl- and inorganic mercury wer...
Repository : Publikationer från Umeå Universitet
Language(s) : English

Instrumental and methodological developments for isotope dilution analysis of gaseous mercury species

Author(s) : Larsson, Tom
Description : This thesis deals with instrumental and methodological developments for speciation analysis of gaseous mercury (Hg(g)), based on isotope dilution analysis (IDA). The studied species include Hg0, (CH3)2Hg, CH3HgX and HgX2 (where X symbolises a negatively charged counter ion in the form of a halide or...
Repository : Publikationer från Umeå Universitet
Language(s) : English

Characterization of Aqueous Peroxomolybdates with Catalytic Applicability

Author(s) : Taube, Fabian
Description : Abstract This thesis is a summary of five papers, containing equilibrium and structure studies of aqueous molybdate and peroxomolybdate species. Some of the peroxomolybdate species have also been studied in terms of their dynamic and catalytic properties. The primary objective was to characterize sp...
Repository : Publikationer från Umeå Universitet
Language(s) : English

Vanadate and Peroxovanadate Complexes of Biomedical Relevance : A speciation approach with focus on diabetes

Author(s) : Gorzsás, András
Description : Diabetes mellitus is one of the most threatening epidemics of modern times with rapidly increasing incidence. Vanadium and peroxovanadium compounds have been shown to exert insulin–like actions and, in contrast to insulin, are orally applicable. However, problems with side–effects and toxicity remai...
Repository : Publikationer från Umeå Universitet
Language(s) : English

Speciation analysis of butyl- and phenyltin compounds in environmental samples by GC separation and atomic spectrometric detection

Author(s) : Nguyen Van, Dong
Description : The main goal of the work presented in this thesis is to improve the reliability of existing methods for speciation analysis of organotin compounds Species-specific isotope dilution (SSID) calibration in combination with gas chromatography – inductively coupled plasma mass spectrometry was used to i...
Repository : Publikationer från Umeå Universitet
Language(s) : English
1

Found 7 documents, displaying page 1 of 1