Results 51 to 60 of about 4,724 (207)

Portable EDXRF for Quality Assurance of Cosmetics

open access: yesCosmetics, 2015
Portable Energy Dispersive X-ray Fluorescence is a viable, cost and time effective analytical technique for qualitative and quantitative evaluation of a wide range of samples. The objective of this study is to present a methodology for quantification of nail polishes, eye shadows, lipsticks and lip gloss using thin film geometry.
Melquiades, Fábio   +5 more
openaire   +2 more sources

Early Bronze Age Copper Circulation in the Guadalentín and Segura Valleys (SE Spain)

open access: yesArchaeometry, Volume 68, Issue 5, Page 1139-1151, October 2026.
ABSTRACT Identifying the sources of copper used in Early Bronze Age metalwork from south‐east Spain is key to resolving a long‐running debate concerning centralized control, or lack thereof, over El Argar society's economic organisation. This study provides the first substantial integrated programme of EDXRF and MC‐ICP‐MS analyses for copper‐base ...
Dirk Brandherm, Ignacio Montero‐Ruiz
wiley   +1 more source

A Low‐Power Radioisotope XRF Spectrometer for Detection of Light Elements on Planetary Missions

open access: yesX-Ray Spectrometry, Volume 55, Issue 5, Page 721-729, September/October 2026.
ABSTRACT Current X‐ray spectrometers for in situ geochemical analysis on planetary missions typically rely either on X‐ray tubes, which demand electrical power and add mass and thermal complexity, or on alpha particle X‐ray spectrometers (APXS) that use rare 244 Cm sources, and come with severe concerns on radiation safety and isotope availability.
Leandro Silveri   +14 more
wiley   +1 more source

X-ray fluorescence analysis of selected micronutrients in ten African indigenous leafy vegetables cultivated in Nairobi, Kenya

open access: yesThe Pan African Medical Journal, 2019
INTRODUCTION: There is a growing interest on vital roles of micronutrients in the maintenance of good health and enhancement of the immune system for prevention of diseases.
Alix Dehayem-Kamadjeu, Justus Okonda
doaj   +1 more source

Backbone‐Length‐Optimized Inhibitors Deliver Long‐Retention Selectivity in Area‐Selective ALD of VO2

open access: yesAdvanced Science, Volume 13, Issue 45, 13 August 2026.
Area‐selective VO2 ALD is found to depend critically on inhibitor backbone length, which governs physisorption, chemisorption stability, and packing efficiency in a coupled manner. An intermediate backbone‐length achieves the best long‐retention selectivity, establishing a chemically and geometrically grounded design principle for small‐molecule ...
Hae Lin Yang   +9 more
wiley   +1 more source

ELIO :Spettrometro Portatile per Analisi EDXRF in Applicazioni di Conservazione e Restauro del Patrimonio Artistico

open access: yesArcheomatica, 2014
A new and innovative portable spectrometer based on EDXRF technique was designed by XGLab analysis for in-situ, fast, non-destructive and non-invasive in all areas of study-specific works of art, for materials research in general and elemental analysis.
XGLAB XGLAB
doaj  

Analysis of Archaeological Ceramics from the Paranaense Museum Collection by EDXRF Technique

open access: yesSemina: Ciências Exatas e Tecnológicas, 2023
The EDXRF technique was used to analyse a selection of archaeological objects from the Paranaense Museum collection (Curitiba, Paraná State, South of Brazil).
Maria Sélia Blonski   +2 more
doaj   +1 more source

Direct analysis of algae for determination of major and minor elements using energy dispersive x-ray fluorescence (EDXRF)

open access: yesKuwait Journal of Science, 2023
The current study aimed to determine the major and minor elements in different algal species using energy dispersive x-ray fluorescence (EDXRF). Eight microalgae were isolated, and the dry powder of biomass was pressed for EDXRF.
Sewgil Saaduldeen Anwer
doaj   +1 more source

Identical‐Location SEM Tracking of Pt/C Gas Diffusion Electrode Degradation at Fuel‐Cell‐Relevant Current Densities

open access: yesChemElectroChem, Volume 13, Issue 15, 1 August 2026.
A combined identical‐location scanning electron microscopy (IL‐SEM) and gas diffusion electrode (GDE) platform directly tracks Pt/C catalyst degradation at realistic current densities up to ˜ 1 A cm−2. This methodology reveals local environment‐dependent degradation pathways, dissolution/redeposition for isolated particles and detachment/agglomeration ...
Aleš Marsel   +8 more
wiley   +1 more source

Automated mineralogy based on micro-energy-dispersive X-ray fluorescence microscopy (µ-EDXRF) applied to plutonic rock thin sections in comparison to a mineral liberation analyzer [PDF]

open access: yesGeoscientific Instrumentation, Methods and Data Systems, 2017
Recent developments in the application of micro-energy-dispersive X-ray fluorescence spectrometry mapping (µ-EDXRF) have opened up new opportunities for fast geoscientific analyses.
W. Nikonow, D. Rammlmair
doaj   +1 more source

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