Results 31 to 40 of about 2,567 (243)

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

Soil Science Society of America Journal
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.
G. Gozukara, Alfred E. Hartemink, Jingyi Huang, J. Demattê   +3 more
semanticscholar   +1 more source

Using pXRF for the Analysis of Ancient Pottery

, 2021
The aim of the secound workshop on the use of portable energy-dispersive X-ray fluorescence (pXRF) organized by the Cluster of Excellence TOPOI was to exchange experiences and discuss the basic requirements for the use of pXRF as a tool for chemical analysis of archaeological ceramics.
Hegewisch, Morten, Daszkiewicz, Małgorzata, Schneider, Gerwulf   +2 more
openaire   +2 more sources

Portable X-ray fluorescence (pXRF) application for plant nutrition analysis and environmental hazard evaluation in tropical environment

Journal of plant nutrition
Understanding nutrient availability and pollution risk in plants is essential for effective environmental and agricultural management. This study evaluates the performance of portable X-ray fluorescence (pXRF) for nutrient analysis in tropical plant ...
Meryem El Mellouki, Ali Boularbah, Kwame Agyei Frimpong, Fassil Kebede   +3 more
semanticscholar   +1 more source

Tropical soils characterization at low cost and time using portable X-ray fluorescence spectrometer (pXRF): Effects of different sample preparation methods

Ciência e Agrotecnologia
Portable X-ray fluorescence spectrometer (pXRF) has been recently adopted by the Soil Science community for uses in both field and laboratory, obtaining the total content of several chemical elements in a few seconds.
Sérgio Henrique Godinho Silva, Elen Alvarenga Silva, Giovana Clarice Poggere, Luiz Roberto Guimarães Guilherme, Nilton Curi   +4 more
doaj   +1 more source

New challenges in the study of lithic raw materials in central Italy at the dawn of metal working societies: La Pietra and other radiolarite quarry-workshops in Tuscany

Journal of Lithic Studies, 2016
In central-southern Tuscany radiolarite has been used as a lithic raw material throughout prehistory. During the Copper Age it was selected for the local production of leaf-shaped artefacts. In the area considered, the Copper Age record is almost totally
Sem Scaramucci, Vanessa Volpi, Armando Costantini, Marco Giamello, Alessandro Donati, Biancamaria Aranguren, Adriana Moroni   +6 more
doaj   +1 more source

Rapid Detection of Available Cr(VI) in Soil Based on pXRF Combined with Ion-Exchange Resin

Agriculture
The detection of available Cr(VI) in soil is critical due to its high uptake by plants, which enables it to enter the food chain and pose significant health risks to humans.
Taige Fu, Wei Liu, Xinglan Fu, Yuehua Huang, Huanhuan Lou, Jie Song, Guanglin Li   +6 more
semanticscholar   +1 more source

Correcting correlation quality of portable X-ray fluorescence to better map heavy metal contamination by spatial co-kriging interpolation

Ecotoxicology and Environmental Safety
High-precision mapping based on portable X-ray fluorescence (PXRF) data is currently being studied extensively; however, owing to poor correlation with soil metal concentration, the original PXRF data directly used for co-kriging interpolation (CKI ...
Manying Zhao, Zengsiche Chen, Can Qian, Yuxin Zhao, Ya Xu, Yuqiang Liu   +5 more
doaj   +1 more source

Uranium, thorium, and potassium analyses using pXRF spectrometry

, 2021
The application of portable XRF spectrometry (pXRF) for determining concentrations of uranium (U), thorium (Th) and potassium (K) was evaluated using a combination of 12 Certified Reference Materials, 17 Standard Reference Materials, and 25 rock samples collected from areas of known U occurrences or mineralization. Samples were analysed by pXRF in Soil,
R D Knight, B A Kjarsgaard, E G Potter, A Plourde   +3 more
openaire   +1 more source

Portable X‐Ray Fluorescence in the Assessment of Zinc Along Grizzly Bear Hair

X-Ray Spectrometry, EarlyView.
ABSTRACT As a biomarker of past uptake of zinc, hair presents an interesting option since its growth can provide a stored record over time. This study investigates the distribution of zinc in hairs gathered from a series of grizzly bears (Ursus arctos horribilis).
David E. B. Fleming, Ethan D. W. Briand, Jennie R. Christensen   +2 more
wiley   +1 more source

Analysis by pXRF of Prehistoric Obsidian Artifacts From Several Sites on Ustica (Italy): Long-Distance Open-Water Distribution From Multiple Island Sources During the Neolithic and Bronze Ages

Open Archaeology, 2020
The small island of Ustica was a regular part of the obsidian distribution network in the central Mediterranean, despite its location more than 50 km north of western Sicily.
Tykot Robert H., Martin Franco Foresta
doaj   +1 more source