نتایج جستجو برای: ray microanalysis
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A calibration procedure for the detection efficiency of energy dispersive X-ray spectrometers (EDS) used in combination with scanning electron microscopy (SEM) for standardless electron probe microanalysis (EPMA) is presented. The procedure is based on the comparison of X-ray spectra from a reference material (RM) measured with the EDS to be calibrated and a reference EDS. The RM is certified b...
Protein matrices with known concentration of elements are used as standards in X-ray microanalysis of biological materials. The aim of the study was to assess if protein standards (gelatine) could be applied for quantitative X-ray microanalysis of carbohydrate material (cellulose) of plant cell walls by means of Monte Carlo simulations. Plant roots grown in Cs contaminated soil and gelatine wit...
To better understand the mechanisms and sites of anesthetic action, we determined the subcellular partitioning of halothane in a tissue model. A method was found to fix the in vivo distribution of halothane in rat atrial tissue for subsequent electron microscopy and x-ray microanalysis. Atrial strips were exposed to various concentrations of halothane, rapidly frozen, cryo-sectioned, and cryo-t...
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