Results 21 to 30 of about 47,183 (259)

Determination of Manganese Content in Soils and Sediments by X-ray Fluorescence Spectrometry

Yankuang ceshi, 2020
OBJECTIVES Due to the advantages of simple sample preparation, non-destructive determination, and rapid detection, the X-ray fluorescence spectrometry technique has become a robust method for determination of manganese in soil or sediment.
CHEN Chun-fei, HONG Xin, WANG Xiao-fei, SU Rong, LIANG Xiao-xi, HE Yu, LU Qiu, TIAN Yan   +7 more
doaj   +1 more source

Application of X-ray Diffraction, X-ray Fluorescence Spectrometry and Electron Microprobe in the Identification of Basalt

Yankuang ceshi, 2015
Basalt identification is usually performed by microscope, so the appraisal results are easily influenced by personal professional level and subjective factors.
XU Nai-cen, SHEN Jia-lin, ZHANG Jing
doaj   +1 more source

The origin and chronology of medieval silver coins based on the analysis of chemical composition

Nukleonika, 2015
Medieval Central Europe coins - the Saxon coins, also called as the Otto and Adelheid denarii, as well as the Polish ones, the Władysław Herman and Bolesław Śmiały coins - were examined to determine their provenance and dating.
Pańczyk Ewa, Sartowska Bożena, Waliś Lech, Dudek Jakub, Weker Władysław, Widawski Maciej   +5 more
doaj   +1 more source

Application Skills on Determination of Geological Sample by X-ray Fluorescence Spectrometry

Yankuang ceshi, 2015
X-ray Fluorescence Spectrometry (XRF) has such advantages as simple sample preparation, green environmental protection and the simultaneous determination of multiple elements and is widely used in the exploration geochemistry analysis field.
CHEN Jing, GAO Zhi-jun, CHEN Chong-ke, LIU Yan-xia, ZHANG Ming-wei   +4 more
doaj   +1 more source

Evaluation of Data Quality on the Detection of Heavy Metals in Soils by Atomic Absorption Spectrometry or Atomic Fluorescence Spectrometry and X-ray Fluorescence Spectrometry in Ecological Environment Monitoring

Yankuang ceshi, 2019
BACKGROUND In current ecological environmental monitoring, the standard methods used to determine the total contents of inorganic elements, such as heavy metals in soil, include atomic absorption spectrometry (AAS), atomic fluorescence spectrometry (AFS)
TIAN Zhi-ren, FENG Xue, JIANG Xiao-xu, LI Zong-chao, LI Yu, XIA Xin   +5 more
doaj   +1 more source

Geochemical characteristics of Jurassic high-sodium coal in Tatuo Coal Mine, Qinghai Province, China

Energy Exploration & Exploitation, 2023
Sodium in the coals of West China has received persistent attention due to its high contents and severe pollutions’ problems during coal utilization.
Jun Wang, Zewei Wang, Zhi Yu, Panchal Balaji, Jie Shi, Yanli Yang   +5 more
doaj   +1 more source

Study on the Mineralogical Characteristics of 12 Copper Concentrates by X-ray Fluorescence Spectrometry, X-ray Powder Diffraction and Polarization Microscope

Yankuang ceshi, 2021
BACKGROUND China is the largest importer of copper concentrate in the world. Studying the mineralogical characteristics of copper concentrates imported from different origins can be used to support the origin analysis and solid waste identification of ...
MIN Hong, LIU Qian, ZHANG Jin-yang, ZHOU Hai-ming, YAN De-tian, XING Yan-jun, LI Chen, LIU Shu   +7 more
doaj   +1 more source

The pulpits of the Church of Our Lady of Pena in Lisbon: an historical, stylistic and technical study

Conservar Património, 2014
The subject of this paper is the carved wooden pulpits of the Church of Our Lady of Pena in Lisbon, Portugal. The fact that these objects were not gilded (as the rest of the carved wooden decoration in the church) raised the reinforced interest in their ...
Sílvia Ferreira, Elsa Murta, Irina Crina Anca Sandu, Manuel Costa Pereira   +3 more
doaj   +1 more source

Study of Araucaria angustifolia nuts by Gamma Spectrometry and X-Ray Fluorescence

Revista de la Sociedad Científica del Paraguay, 2019
The seed of Araucaria angustifolia is largely produced and consumed in Parana state, Brazil. It has an estimated annual consumption of approximately 0.167 kg per capita. The samples of seeds were acquired in 8 different commercial points of Londrina city
Edher Zacarías Herrera, Avacir Casanova Andrello, Carlos Roberto Appoloni   +2 more
doaj   +1 more source

Element Mapping by X-Ray Fluorescence Spectrometry

Analytical Sciences, 1985
An energy-dispersive system is described for element mapping by X-ray fluorescence spectrometry. Unlike Gruker′s tomographic system, a point-shaped beam from an X-ray tube is used for direct mapping. Typical spatial resolution of the system is about 260μm.
KOBAYASHI, Yoshinori, KAWASE, Akira, UCHIUMI, Akira, NAKAMURA, Susumu, KUBOTA, Masaaki, NAKATANI, Kiyoshi, BAN, Hajime, ARAI, Tomoya   +7 more
openaire   +2 more sources