Results 21 to 30 of about 4,944 (206)

Portable X-ray Fluorescence Analysis of Organic Amendments: A Review

open access: yesApplied Sciences, 2022
Portable XRF spectrometry (pXRF) has recently undergone significant technological improvements and is being applied in a wide range of studies. Despite pXRF advantages, this technique has rarely been used to characterize organic amendments and residues ...
Rafael López-Núñez
doaj   +1 more source

Prediction accuracy of pXRF, MIR, and Vis‐NIR spectra for soil properties—A review

open access: hybridSoil Science Society of America Journal, Volume 89, Issue 2, March/April 2025.
Abstract Here, we review the prediction accuracy for soil properties using portable X‐ray fluorescence (pXRF), mid‐infrared (MIR), and visible near‐infrared (Vis‐NIR) and the factors impacting predictions and its accuracy. In total, 305 published papers were reviewed, and most of them were from Australia, Brazil, China, and the United States. About 44%
Gafur GÖZÜKARA   +3 more
openalex   +2 more sources

Application of Portable X-ray Fluorescence Spectrometer in the Analysis of Rock Samples

open access: yesYankuang ceshi, 2018
Portable X-ray Fluorescence Spectrometer (PXRF) is often used in the laboratory and the field because it is a portable, high-efficiency and non-destructive piece of equipment.
ZHOU Shu-guang   +4 more
doaj   +1 more source

Comparison of AAS, ICP-MS, and pXRF Performance for Copper Analysis in Agricultural Soils [PDF]

open access: yesJournal of Central European Agriculture
Accumulated copper (Cu) in agricultural soils is non-biodegradable and persists in the environment, which imposes the need for its regular monitoring by selective, rapid, simple, and low-cost analytical techniques.
Marija Poljak   +4 more
doaj   +1 more source

Obsidian from the Site of Piano dei Cardoni, Ustica (Palermo, Italy): Preliminary Results on the First Occupation of the Island

open access: yesOpen Archaeology, 2021
New investigations on Ustica (Palermo, Sicily) originated from the need to improve our knowledge of the island’s archaeological and environmental heritage.
Speciale Claudia   +7 more
doaj   +1 more source

A Compositional Study (pXRF) of Early Holocene Obsidian Assemblages from Cyprus, Eastern Mediterranean [PDF]

open access: goldOpen Archaeology, 2019
This paper presents the results of the geochemical characterisation of complete obsidian assemblages dating to the Early Aceramic Neolithic (8200–6900 Cal BC) and located in Cyprus, eastern Mediterranean.
Theodora Moutsiou
openalex   +2 more sources

Portable X-Ray Fluorescence Spectroscopy for Rapid and Cost-Effective Determination of Elemental Composition of Ground Forage

open access: yesFrontiers in Plant Science, 2019
The recent development of portable X-ray fluorescence spectrometers (PXRF) has created new avenues for rapid plant elemental concentration determination at reduced cost while avoiding hazardous chemicals. A few studies have indicated the potential use of
Yadav Sapkota   +5 more
doaj   +1 more source

Predictions of Cu, Zn, and Cd Concentrations in Soil Using Portable X-Ray Fluorescence Measurements

open access: yesSensors, 2020
Portable X-ray fluorescence (PXRF) measurements on 1520 soil samples were used to create national prediction models for copper (Cu), zinc (Zn), and cadmium (Cd) concentrations in agricultural soil.
Karl Adler   +4 more
doaj   +1 more source

Sensor mapping of amazonian dark earths in deforested croplands [PDF]

open access: yes, 2016
Amazonian Dark Earths (ADEs) are fertile soils for agricultural production as well as important archaeological resources for understanding the pre-Columbian past of the Neotropical lowland rainforest.
Eriksson, Jan   +6 more
core   +1 more source

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