Search for dissertations about: "trace element analysis"
Showing result 21 - 25 of 56 swedish dissertations containing the words trace element analysis.
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21. Development of wavelength modulation diode laser absorption spectrometry in transversely heated graphite atomisers for sensitive trace element analysis
Abstract : The Wavelength Modulation Diode Laser Absorption Spectrometry technique (WM-DLAS) is a laser-based spectroscopic technique for sensitive detection of atoms and molecules that so far mostly has been used for environmental monitor-ing. This thesis is concerned with the development of this technique for sensitive trace element analysis. READ MORE
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22. Biomechanics of the Human Eye and Intraocular Pressure Measurements
Abstract : This thesis addresses the reliability of Goldmann-type applanation tonometers (GAT). It deals with the investigation of the relation between predicted intraocular pressure, IOPG and true pressure, IOPT. READ MORE
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23. Design of a Total-Reflection X-Ray Fluorescence Spectrometer and Application to Periphyton Communities
Abstract : The work presented in this thesis deals with the use of total-reflection X-ray fluorescence (TXRF) spectrometry for trace element analysis of periphyton. A TXRF spectrometer was designed and its performance was evaluated with a plankton reference material. For 12 .my. READ MORE
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24. Iron in the Lena River basin, NE Russia : Insights from microscopy, spectroscopy and isotope analysis
Abstract : Iron is an important mediator of biotic and abiotic processes on the Earth’s surface, being an electron acceptor in organic matter degradation, a surface for organic matter and trace element adsorption, and a required element for enzymatic processes during primary production. Yet, the role of iron as a mediator of carbon and trace element cycling in high latitude, permafrost-dominated regions remains poorly investigated. READ MORE
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25. Determination of equivalent hydraulic and mechanical properties of fractured rock masses using the distinct element method
Abstract : The equivalent continuum approach uses equivalent propertiesof rock mass as the input data for a continuum analysis. Thisis a common modeling method used in the field of rock mechanicsand hydrogeology. READ MORE