Results 1 to 10 of about 2,426 (216)

Assessment of portable X-ray fluorescence (pXRF) for plant-available nutrient prediction in biochar-amended soils [PDF]

Scientific Reports
Portable X-ray Fluorescence probe (pXRF) is a tool used to measure many elements quickly and efficiently in soil with minimal sample preparation. Although this sensing technique has been widely used to determine total elemental concentrations, it has not
Joao Antonangelo, Hailin Zhang
doaj   +3 more sources

A Proximal Sensor-Based Approach for Clean, Fast, and Accurate Assessment of the Eucalyptus spp. Nutritional Status and Differentiation of Clones [PDF]

Plants, 2023
Several materials have been characterized using proximal sensors, but still incipient efforts have been driven to plant tissues. Eucalyptus spp. cultivation in Brazil covers approximately 7.47 million hectares, requiring faster methods to assess plant ...
Renata Andrade, Sérgio Henrique Godinho Silva, Lucas Benedet, Elias Frank de Araújo, Marco Aurélio Carbone Carneiro, Nilton Curi   +5 more
doaj   +2 more sources

Use of Vis-NIR and pXRF Spectrometers in Soil Science

Türkiye Tarımsal Araştırmalar Dergisi, 2021
Physical and chemical analysis of soils with traditional methods usually brings some disadvantages to the environment and economy due to time, cost, and chemical waste outputs.
Gafur GÖZÜKARA
doaj   +2 more sources

Combining Proximal and Remote Sensors in Spatial Prediction of Five Micronutrients and Soil Texture in a Case Study at Farmland Scale in Southeastern Brazil

Agronomy, 2022
Despite the increasing adoption of proximal sensors worldwide, rare works have coupled proximal with remotely sensed data to spatially predict soil properties.
Luiza Maria Pereira Pierangeli, Sérgio Henrique Godinho Silva, Anita Fernanda dos Santos Teixeira, Marcelo Mancini, Renata Andrade, Michele Duarte de Menezes, João José Marques, David C. Weindorf, Nilton Curi   +8 more
doaj   +1 more source

Portable X-ray Fluorescence Analysis of Water: Thin Film and Water Thickness Considerations

EQA, 2021
Water is requisite for life and essential for many industries. Increasingly, global water supplies include inorganic contaminants leading to millions of deaths annually.
Julia Kagiliery, Somsubhra Chakraborty, Bin Li, Michael Hull, David Weindorf   +4 more
doaj   +1 more source

A general framework and practical procedure for improving pxrf measurement accuracy with integrating moisture content and organic matter content parameters

Scientific Reports, 2021
Rapid, accurate detection of heavy-metal content is extremely important for precise risk control and targeted remediation. Herein, a general modeling method and process based on the relationship between Pxrf measured values and site parameters are ...
Zengsiche Chen, Ya Xu, Guoyuan Lei, Yuqiang Liu, Jingcai Liu, Guangyuan Yao, Qifei Huang   +6 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 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, Freund Kyle P., de Vita Sandro, Larosa Nunzia, Forgia Vincenza, Battaglia Giuseppina, Tykot Robert H., Vassallo Stefano   +7 more
doaj   +1 more source

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

Applied 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

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

Yankuang 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, LIAO Shi-bin, ZHOU Ke-fa, WANG Jin-lin, LIU Ying-di   +4 more
doaj   +1 more source

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

Sensors, 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, Kristin Piikki, Mats Söderström, Jan Eriksson, Omran Alshihabi   +4 more
doaj   +1 more source