نتایج جستجو برای: dispersive x
تعداد نتایج: 632880 فیلتر نتایج به سال:
zns nanoparticles were synthesized via a simple surfactant free microwave route. in this synthesis, thioacetamide was used as sulfur source. the effects of different parameters such as type of zinc precursor, time and power of irradiation on the morphology and particle size of the products have been investigated. the nanostructures were characterized by ...
The Fe nanowires were prepared by Ac electrodeposition method. The two steps anodized aluminum oxides (alumina) were used as templates for electrodeposition of magnetic nanowires. Sulfuric acid was used to anodize aluminum. The pours diameter and growth rate of alumina were investigated. The FeSO4 electrolyte was used for growth of nanowires. The prepared magnetic nanowires were characterized b...
A method of synovial fluid preparation giving optimal hydroxyapatite detection as well as definitions of the threshold masses of hydroxyapatite in viscous synovial fluid detectable by x ray diffraction and scanning electron microscopy with energy dispersive analysis is reported. Use of an equal volume of 100% hydrazine with the synovial fluid optimised detection of hydroxyapatite. By x ray diff...
Line shapes of atomic lines and soft x-ray emission bands measured with a wavelength dispersive spectrometer (WDS) with the Electron Probe Micro Analyzer (EPMA) are reviewed. Least square fitting to pseudo-Voigt profiles of the digitally measured spectra are used to account for the presence of non-diagram features (high and low energy satellites) and instrumental induced distortions. The effect...
The identification and characterization of microparticles has become an important field of study in recent years due to their presence in the environment and association with pathogenesis. Asbestos fibers have been intensively studied for these reasons. Since conventional microscopy has not provided unique identification of these materials, electron probe microanalysis, which yields chemical da...
An inter-laboratory exercise has been carried out to evaluate the analytical performance of Method for Determining Hazardous Substances: MDHS 91 for determining Metals and metalloids in workplace air by X-ray fluorescence spectrometry, published by the Health and Safety Executive, United Kingdom. Sets of prepared filter standards were used to “transport” a master calibration established on an X...
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