Results 211 to 220 of about 1,885,987 (306)

Portable, Benchtop and Micro‐XRF in Agriculture—Present and Future From the Hardware Perspective

X-Ray Spectrometry, EarlyView.
ABSTRACT X‐ray fluorescence (XRF) spectrometry has been an important tool in agricultural studies recently. This technique allows the multielemental, direct, and in situ analysis. The objective of this review is to evaluate the use of XRF in agriculture focusing on plant and soil samples based on indexed articles in the Scopus database from 2020 to ...
Eduardo de Almeida, Felipe Rodrigues Santos, Fabio Luiz Melquiades, Gabriel Sgarbiero Montanha, Tiago Rodrigues Tavares, Eduardo Santos, Higor José Freitas Alves da Silva, Hudson Wallace Pereira de Carvalho   +7 more
wiley   +1 more source

Land-ocean nutrient gradients are associated with seasonal shifts in net-collected phytoplankton assemblages in the Yangtze River Estuary exclusive economic zone. [PDF]

Front Microbiol
Deng B, Liu W, Li J, Yang T, Shi J, Yuan Y, Cheng S, Wu L, Xiong C, Zhao L, Zheng X, Zhu L.   +11 more
europepmc   +1 more source

Toward Silica‐Free Compliance: A Low‐Viscosity Sample Pretreatment Methodology for Crystalline Quartz Quantification in Viscous Pastes

X-Ray Spectrometry, EarlyView.
ABSTRACT Crystalline quartz, the most common crystalline silica polymorph, is widely found in industrial products. It is of high regulatory relevance, because its fine fraction, a form of respirable crystalline silica, is classified as an occupational carcinogen, with product‐content thresholds (e.g., 0.1% (w/w) in the European Union) and stringent ...
Giacomo Siviero, Michelle Buoso, Diego Andreola, Giulia Moro   +3 more
wiley   +1 more source

Rapid consumption of H₂ in the deep subsurface. [PDF]

Natl Sci Rev
Xie H, Xu T, Wang X, He K, Peng Y, Yang C, Tong F, Han S, Eiler JM, Bao H.   +9 more
europepmc   +1 more source

Organic geochemistry division

Geochimica et Cosmochimica Acta, 1993
openaire   +1 more source

Regional Prediction of Soil Nutrient Availability and Management Using Portable X‐Ray Fluorescence Spectrometry

X-Ray Spectrometry, EarlyView.
ABSTRACT Portable x‐ray fluorescence (pXRF) spectroscopy has emerged as a rapid and cost‐effective technique for soil elemental analysis; however, its application for predicting available nutrients and supporting agronomic decision making remains insufficiently evaluated under field conditions.
Joao Antonangelo, Deepanjan Mridha, Joaquin Casanova   +2 more
wiley   +1 more source

From Wartime Nuclear Physics to Isotope Science: George Page and the Foundations of New Zealand Mass Spectrometry. [PDF]

J Mass Spectrom
Faure K, Phillips A.
europepmc   +1 more source

A Multi‐Analytical Campaign on Reused Medieval Musical Parchment From the Archivio di Stato di Siena (Italy)

X-Ray Spectrometry, EarlyView.
ABSTRACT In this study, a non‐invasive, multi‐analytical approach combining hypercolorimetric multispectral imaging (HMI), stereomicroscopy, X‐ray fluorescence (XRF) spectroscopy, principal component analysis (PCA) and X‐ray radiography (RX) is used to investigate three reused musical parchment fragments dating from the late 14th or early 15th century ...
Mario Gentile, Chiara Delledonne, Michela Albano, Eleonora Verni, Antonio Calvia, Chaehoon Lee, Marco Malagodi, Giacomo Fiocco   +7 more
wiley   +1 more source

Editorial: Microbial diversity in mine drainage. [PDF]

Front Microbiol
Zhang R, Trun N, Liu J, Valkanas MM.
europepmc   +1 more source

Evolution of Heteroatomic Compounds and Hydrocarbons from Kerogen Pyrolysis: Potential Implications for Shale Oil Mobility. [PDF]

ACS Omega
Lin H, Liao Y, Jiang B, Cao T, Qian M, Jin K, Yang Y, Zhang X.   +7 more
europepmc   +1 more source