Results 261 to 270 of about 289,920 (342)
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, 2020
Portable X-ray fluorescence (pXRF) spectrometry and visible near-infrared diffuse reflectance spectroscopy (Vis-NIR DRS), used separately or in tandem, have become important techniques for determination and prediction of soil attributes worldwide ...
Lucas Benedet +6 more
semanticscholar +1 more source
Portable X-ray fluorescence (pXRF) spectrometry and visible near-infrared diffuse reflectance spectroscopy (Vis-NIR DRS), used separately or in tandem, have become important techniques for determination and prediction of soil attributes worldwide ...
Lucas Benedet +6 more
semanticscholar +1 more source
Atomic spectrometry update. X-ray fluorescence spectrometry
Journal of Analytical Atomic Spectrometry, 1998This annual review of X-ray fluorescence covers developments over the period 2003–2004 in instrumentation and detectors, matrix correction and spectrum analysis procedures, X-ray optics and microfluorescence, synchrotron XRF, TXRF, portable XRF and on-line applications, as assessed from the published literature.
Potts, Philip J +6 more
openaire +1 more source
, 2020
Landfill agricultural soils are common worldwide and pose risks to human health via heavy metals common in such systems. Similarly, anthropogenically deposited organic matrices may lead to methanogenesis in saturated landfill systems.
S. Mukhopadhyay +4 more
semanticscholar +1 more source
Landfill agricultural soils are common worldwide and pose risks to human health via heavy metals common in such systems. Similarly, anthropogenically deposited organic matrices may lead to methanogenesis in saturated landfill systems.
S. Mukhopadhyay +4 more
semanticscholar +1 more source
X-ray fluorescence spectrometry
Journal of Geochemical Exploration, 1992Abstract X-ray fluorescence analysis is a technique that is widely used for the determination of both major and trace elements in a wide variety of geological materials. In this review, the analytical characteristics of both wavelength and energy dispersive instrumentation are considered as well as operating and calibration procedures applicable to ...
Philip J. Potts, Peter C. Webb
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Trace and ultratrace analysis of liquid samples by X-ray fluorescence spectrometry
TrAC - Trends in Analytical Chemistry, 2014E. Marguí, B. Zawisza, R. Sitko
semanticscholar +3 more sources
Talanta: The International Journal of Pure and Applied Analytical Chemistry, 2020
Apatite group of minerals incorporates a large range of trace metals such as Sr, Y, U, Th, as well as the rare earth elements, that allows obtaining useful information on their genesis and could be used in several applications in geology and geochemistry.
A. Maltsev +5 more
semanticscholar +1 more source
Apatite group of minerals incorporates a large range of trace metals such as Sr, Y, U, Th, as well as the rare earth elements, that allows obtaining useful information on their genesis and could be used in several applications in geology and geochemistry.
A. Maltsev +5 more
semanticscholar +1 more source
Geoderma, 2019
Conventional soil chemical analyses are time-consuming and laboratory-based. Spectroscopic techniques have been introduced to make soil measurements more rapid and cost-effective.
Tatiane M DE Lima +5 more
semanticscholar +1 more source
Conventional soil chemical analyses are time-consuming and laboratory-based. Spectroscopic techniques have been introduced to make soil measurements more rapid and cost-effective.
Tatiane M DE Lima +5 more
semanticscholar +1 more source
Geoderma, 2019
In this study, elemental data from portable X-ray fluorescence (PXRF) spectrometry was used to test the efficiency of four machine learning techniques (random forest; linear and nonlinear support vector machine; classification and regression tree) for ...
S. Chakraborty +6 more
semanticscholar +1 more source
In this study, elemental data from portable X-ray fluorescence (PXRF) spectrometry was used to test the efficiency of four machine learning techniques (random forest; linear and nonlinear support vector machine; classification and regression tree) for ...
S. Chakraborty +6 more
semanticscholar +1 more source
, 2020
The portable X-ray fluorescence spectrometry (pXRF) can be considered one of the most novelty for soil characterization. In tropical regions (e.g., Brazil), some studies have showed a consistent correlation between pXRF and laboratory-based methods ...
C. Borges +6 more
semanticscholar +1 more source
The portable X-ray fluorescence spectrometry (pXRF) can be considered one of the most novelty for soil characterization. In tropical regions (e.g., Brazil), some studies have showed a consistent correlation between pXRF and laboratory-based methods ...
C. Borges +6 more
semanticscholar +1 more source
, 2020
Energy-dispersive X-ray fluorescence spectrometry (EDX) is a widely used modern elemental analysis method. Most of the commercially produced EDX spectrometers cannot determine elements with atomic numbers below 11 (sodium).
Soraya Aidene +4 more
semanticscholar +1 more source
Energy-dispersive X-ray fluorescence spectrometry (EDX) is a widely used modern elemental analysis method. Most of the commercially produced EDX spectrometers cannot determine elements with atomic numbers below 11 (sodium).
Soraya Aidene +4 more
semanticscholar +1 more source