Results 21 to 30 of about 112,596 (333)
Study of Araucaria angustifolia nuts by Gamma Spectrometry and X-Ray Fluorescence
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+2 more
doaj +1 more source
Geochemical characteristics of Jurassic high-sodium coal in Tatuo Coal Mine, Qinghai Province, China
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+5 more
doaj +1 more source
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+7 more
doaj +1 more source
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+5 more
doaj +1 more source
Improvements and simplifications in in-gel fluorescent detection of proteins using ruthenium II tris-(bathophenanthroline disulfonate): the poor man's fluorescent detection method [PDF]
Fluorescent detection of proteins is a popular method of detection allying sensitivity, linearity and compatibility with mass spectrometry. Among the numerous methods described in the literature, staining with ruthenium II tris(bathophenanthroline disulfonate) is particularly cost-effective, but slightly cumbersome owing to difficulties in the ...
arxiv +1 more source
In the determination of biological samples by X-ray Fluorescence Spectrometry, sample powder pellets pressed by traditional sample preparation technique at 220-440 MPa are not compact and smooth, so the sample room of X-ray Fluorescence Spectrometry ...
YU Zhao-shui+5 more
doaj +2 more sources
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+3 more
doaj +1 more source
Residual Metallic Contamination of Transferred Chemical Vapor Deposited Graphene [PDF]
Integration of graphene with Si microelectronics is very appealing by offering potentially a broad range of new functionalities. New materials to be integrated with Si platform must conform to stringent purity standards. Here, we investigate graphene layers grown on copper foils by chemical vapor deposition and transferred to silicon wafers by wet etch
arxiv +1 more source
Element Mapping by X-Ray Fluorescence Spectrometry
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.
Tomoya Arai+7 more
openaire +3 more sources
Clay in West Sumatra has been used as a natural dye for batik, so the batik is known as clay batik. The dyeing of the cloth is done by boiling and soaking the clay together with the cloth for 10 days. The color of the fabric is caused by certain elements
Reni Fitria Nengsih+5 more
doaj +1 more source