نتایج جستجو برای: x ray fluorescence

تعداد نتایج: 760998  

A. Hosseinian, A.R. Mahjoub M. Movahedi

A new tris-chelate Cd(II) complex, [Cd(DADMBTZ)3](ClO3)2 has been successfully synthesized and characterized by IR, 1H, 13C NMR spectroscopy, elemental analysis and single crystal X-ray determination. The thermal behavior, UV-Vis and fluorescence spectra of compound were studied. In reaction with DADMBTZ, Cadmium (II) forms a tris-chelate complex with nearly C3 symmetry for coordination polyhed...

In this paper, high purity magnesium hydroxide nanoplates were successfully synthesized by using brine rich in magnesium ions as precursor and NaOH as precipitating agent without using dispersant agent in the room temoerature. The study and characterization of various properties of obtained nanopowder was carried out by X-Ray Diffraction (XRD), Field Emission Scanning Electron Microscopy (FESEM...

Journal: :Biochemistry 2011
Claire M Weekley Jade B Aitken Stefan Vogt Lydia A Finney David J Paterson Martin D de Jonge Daryl L Howard Ian F Musgrave Hugh H Harris

Selenium compounds exhibit chemopreventative properties at supranutritional doses, but the efficacy of selenium supplementation in cancer prevention is dependent on the chemical speciation of the selenium supplement and its metabolites. The uptake, speciation, and distribution of the common selenoamino acid supplements, selenomethionine (SeMet) and Se-methylselenocysteine (MeSeCys), in A549 hum...

2003
J. E. PENNER-HAHN

1.59.1 PHYSICS OF X-RAY ABSORPTION 1 1.59.1.1 X-ray Absorption Edges 2 1.59.1.2 X-ray Fluorescence 3 1.59.1.3 Measurement of X-ray Absorption Spectra 3 1.59.2 EXTENDED X-RAY ABSORPTION FINE STRUCTURE 6 1.59.2.1 Theoretical Description of EXAFS Spectra 6 1.59.2.1.1 Single scattering 6 1.59.2.1.2 Multiple scattering 8 1.59.2.1.3 Other corrections to the EXAFS equation 9 1.59.2.2 Programs for Calc...

Journal: :Physica Status Solidi A-applications and Materials Science 2021

Chambre d'Analyse Spectrométrique en Transmission ou Réflexion (Analysis Chamber for or Reflection Spectrometry) (CASTOR) is a new instrument, operated at the SOLEIL synchrotron facility, dedicated to metrological characterization of thin films with thicknesses in nanometer range. The instrument can combine two X-ray techniques, namely, reflectivity (XRR) measurements fluorescence (XRF) acquisi...

2008

The XDD beamline (http://ssls.nus.edu.sg/facility/beamlines/xdd/xdd.htm) at SSLS delivers a tunable monochromatized photon source with high resolution in a wide energy range (2.3-10 keV). This hard x-ray light source is ideal for diffractometry, fluorescence detection and absorption spectroscopy, especially the study of XAFS (x-ray absorption fine structure) and XANES ( X-ray Absorption Near Ed...

2010
Dominique Levesque Mathieu Bouchard

Modern analytical laboratories require tools to assess uncertainties at every step of the analytical process. Borate fusion combined with X-Ray fluorescence has often been demonstrated to be essential for the determination of major elements in cements, ores and a large number of other matrixes. However, drift and bias contributions from the fusion technique, burner position, fluxer to fluxer, m...

Journal: :View 2021

Lanthanide scintillators capable of converting the absorbed X-ray photon energy to ultraviolet (UV) or visible light, are emerged as promising nanoprobes for multifunctional diagnosis and deep-tissue antitumor therapy such X-ray-excited fluorescence (XEF) imaging, X-ray-triggered photodynamic (X-PDT), soft X-ray-activated NO gas therapy. Such biomedical tools have potential overcome major chall...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید