نتایج جستجو برای: ray fluorescence xrf
تعداد نتایج: 404863 فیلتر نتایج به سال:
Within the HarvestPlus program there are many collaborators currently using X-Ray Fluorescence (XRF) spectroscopy to measure Fe and Zn in their target crops. In India, five HarvestPlus wheat collaborators have laboratories that conduct this analysis and their throughput has increased significantly. The benefits of using XRF are its ease of use, minimal sample preparation and high throughput ana...
Investigations of the chemical composition kidney stones are essential for understanding nature formation and development preventative treatment methods. Instrumental activation analysis radiations significant tools determining stones. Kidney varying compositions were investigated through use X-ray powder diffraction (XRD) fluorescence (XRF) techniques. Materials can be observed in two very dif...
Clay minerals are considered the most important components of clastic reservoir rock evaluation studies. The Shurijeh gas reservoir Formation, represented by shaly sandstones of the Late Jurassic-Early Cretaceous age, is the main reservoir rock in the Eastern Kopet-Dagh sedimentary Basin, NE Iran. In this study, X-ray diffraction (XRD), X-ray fluorescence (XRF), scanning electron microscopic (S...
Introduction: Extraterrestrial sample return missions have been undertaken (Stardust and Genesis) and are being planned for Mars (Mars Sample Return, 2025). One of the major objectives of the latter is the search for traces of life. It will be important to start searching for traces of life during the preliminary examination stages while returned samples are still stored in their original conta...
Using portable instruments for the preservation of artworks in heritage science is more and common. Among techniques, Macro X-Ray Fluorescence (MA-XRF) digital radiography (DR) play a key-role field, therefore number MA-XRF scanners radiographic apparatuses have been developed this scope. Recently, INFN-CHNet group, network INFN devoted to cultural heritage, has scanner in-situ analyses. The in...
Characterization and identification of Maitara Island clay have been carried out. This study aims to determine the types minerals contained in clay. The analytical methods used include X-Ray Fluorescence (XRF) chemical composition clay, Diffraction (XRD) for mineralogical analysis Fourier Transmission Infra Red (FTIR) vibrations that exist between atoms from Island, Scanning Electron Microscopy...
Two paintings by the Neapolitan Renaissance painter Colantonio were studied with two non-invasive techniques to enrich technical–scientific documentation. Infrared reflectography (IR) and x-ray fluorescence (XRF) analyses performed on Saint Jerome in studio Francis delivering Rule, preserved Museo e Real Bosco di Capodimonte. The IR scanning was look beyond visible layers of paint for preparato...
The production of nuclear fuel used in the research reactor at Instituto de Pesquisas Energéticas e Nucleares (IPEN/CNEN-SP) requires a series of chemical and metallurgical processes. The quality of the end product depends on the control over all the stages of the manufacturing process and over the quality of raw materials employed. In fact, spectrometric methods are increasingly used as quanti...
DANTE is a new Digital Pulse Processor (DPP) developed for fluorescence detectors, like silicon drift detectors (SDDs) or High Purity Germanium (HPGe), used in X-ray Fluorescence (XRF) and Absorption Spectroscopy (XAS) experiments at synchrotron facilities. Its main features are its optimal energy resolution peak stability detector count rate values up to 1-2 Mcps, enhanced rejection of pile-up...
Mineralized tissues accumulate elements that play crucial roles in animal health. Although elemental content of bone, blood and teeth of human and some animal species have been characterized, data for many others are lacking, as well as species comparisons. Here we describe the distribution of elements in horn (Bovidae), antler (Cervidae), teeth and bone (humerus) across a number of species det...
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