搜索结果: 1-12 共查到“知识库 X-ray fluorescence”相关记录12条 . 查询时间(0.062 秒)
Application of synchrotron radiation X-ray fluorescence to investigate the distribution of mineral elements in different organs of greenhouse spinach
spinach distribution of mineral elements synchrotron radiation XRF
2015/1/28
Consumption of vegetables is one of the most important ways of providing the body with mineral elements. However, it is not clear how mineral elements are distributed in different organs of vegetables...
Analysis of Heavy Metals in Human Scalp Hair Using Energy Dispersive X-Ray Fluorescence Technique
Human Hair Heavy Metals X-Ray Fluorescence Risk Assessment
2013/1/29
Analysis of six heavy metals (Cr, Mn, Ni, Cu, Zn and Mo) in human scalp hair was carried out among various occupational distributions to ascertain their heavy metal burden, using energy dispersive x-r...
X-ray Fluorescence Analysis of Cr6+ Component in Mixtures of Cr2O3 and K2CrO4
X-ray Fluorescence Analysis Cr6+ Component in Mixtures of Cr2O3 and K2CrO4
2010/9/17
X-ray fluorescence analysis using Cr Kα spectra was applied to the determination of the mixing ratio of Cr6+ to (Cr6+ + Cr3+) in several mixtures of K2CrO4 and Cr2O3. Because the powder of K2CrO4 cont...
High Definition X-Ray Fluorescence: Principles and Techniques
High Definition X-Ray Fluorescence Principles Techniques
2009/9/4
Energy dispersive X-ray fluorescence (EDXRF) is a well-established and powerful tool for nondestructive elemental analysis of virtually any material. It is widely used for environmental, industrial, p...
High-Definition X-Ray Fluorescence: Applications
High-Definition X-Ray Fluorescence: Applications
2009/9/4
Energy dispersive X-ray fluorescence (EDXRF) is a well-established and powerful tool for nondestructive elemental analysis of virtually any material. It is widely used for environmental, industrial, p...
Twin image removal in X-ray fluorescence holography with two energies
X-ray holography twin image
2009/8/13
In the last decade, X-ray fluorescence holography has been developed for the study of 3D atomic arrangements in solids. However, it encounters the twin image problem which may disturb the reconstructe...
Non Destructive Analysis of Gold Alloys Using Energy Dispersive X-Ray Fluorescence Analysis
Gold Alloys Energy
2009/7/29
Gold alloys can be analyzed quickly and in a nondestructive
manner using energy dispersive x-ray
fluorescence analysis (ED-XRFA). Two factors determine
the accuracy of the measurement; the repeatab...
Application of Energy-dispersive X-ray Fluorescence to Jewellery Samples determining Gold and Silver
X-ray fluorescence gold silver jewellery cupellation
2009/7/28
The results from a study of the real scope of energydispersive
X-ray fluorescence analysis in an Assay
Office, in which precious metal samples must be
analysed prior to their hallmarking according ...
USE OF A FIELD PORTABLE X-RAY FLUORESCENCE ANALYZER TO DETERMINE THE CONCENTRATION OF LEAD AND OTHER METALS IN SOIL SAMPLES
X-Ray fluorescence portable analyzer lead copper zinc
2010/12/27
Field portable methods are often needed in risk characterization, assessment and management to rapidly determine metal concentrations in environmental samples. Examples are for determining: “hot spots...
A reexamination of absorption and enhancement effects in X-ray fluorescence trace element analysis
reexamination of absorption X-ray fluorescence trace element analysis
2012/4/6
In this paper, sample mass-absorption corrections for X-ray fluorescence trace element analysis are reexamined and a new approach is presented that is moreaccurate and more versatile than current meth...
Electron microprobe analysis of Ca in olivines close to grain boundaries: The problem of secondary X-ray fluorescence
Electron microprobe analysis of Ca olivines grain boundaries secondary X-ray fluorescence
2012/4/5
AnalysisofCain olivine grainscloseto boundaries withCa-richphases is inherently problematic becauseofthe effectsofsecondary X-rayfluorescenceofCafrom the adjoining Ca-richphase. Commercial fluorescenc...
Quantitative Analysis of Elements in Sediments and Soils by X-ray Fluorescence
Quantitative Analysis Elements X-ray Fluorescence
2012/2/13
Previous applications of the method of known additions for quantitative X-ray fluorescent analysis have assumed a linear relationship between peak intensity and concentration of the element being anal...