3 edition of Determination of Calcium in Wolframite Concentrates by Fluorescent X-Ray Spectrography. found in the catalog.
Determination of Calcium in Wolframite Concentrates by Fluorescent X-Ray Spectrography.
United States. Bureau of Mines.
|Series||Report of investigations (United States. Bureau of Mines) -- 5416|
|Contributions||Campbell, W., Thatcher, J.|
Sokas RK, Besarab A, McDiarmid MA, Shapiro IM, Bloch P. Sensitivity of in vivo X-ray fluorescence determination of skeletal lead stores. Arch Environ Health. Sep-Oct; 45 (5)– Hu H, Pepper L, Goldman R. Effect of repeated occupational exposure to lead, cessation of exposure, and chelation on levels of lead in by: X-RAY SPECTROCHEMICAL DETERMINATION OF POTASSIUM Table 3. X-ray spectrographic instrument settings X-ray tube- Tungsten target 50 KV 45 ma Analyzing crystal- EDDT Radiation counter- Gas-flow proportional Pulse height analyzer- V level V width Other- Fixed time- 20 sec Time constant- sec.
AN X-RAY DIFFRACTION STUDY OF HIGH PHOSPHATE BONES* BY ALBERT HIRSCHMAN,f ALBERT E. SOBEL, BENJAMIN KRAMER, AND I. FANKUCHEN (From the Department of Biochemistry and the Pediatric Research Laboratory, The Jewish Hospital of Brooklyn, and the Department of Chemistry, Polytechnic Institute of Brooklyn, New York) PLATES 1 TO 3. Fluorescence spectroscopy (also known as fluorimetry or spectrofluorometry) is a type of electromagnetic spectroscopy that analyzes fluorescence from a sample. It involves using a beam of light, usually ultraviolet light, that excites the electrons in molecules of certain compounds and causes them to emit light; typically, but not necessarily, visible light.
Determination of the phosphorus content in potato starch using an energy dispersive X-ray fluorescence method. Food Chemistry [ Links ] Oliveira, A.L.; Almeida, E.; Silva, F.B.R.; Nascimento Filho, V.F. Elemental contents in exotic Brazilian tropical fruits evaluated by energy dispersive X-ray fluorescence. Calcium, magnesium, silicon, aluminum, and iron are the five elements most commonly determined with sometimes the inclusion of potassium. Wavelength dispersive x-ray fluorescence spectrometry (WD-XRF) is a well-known technique for the rapid, multi-elemental, analysis of limestone.
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Additional Physical Format: Online version: Campbell, William Joseph, Determination of calcium in wolframite concentrates by fluorescent x-ray spectrography. W.J. Campbell and J.W. Thatcher, Determination of Calcium Wolframite Concentrates by Fluorescent X-ray Spectrography, Bureau of Mines Rept.
of Investigations, 18 pp. Google Scholar M.B. Cavanagh, The Application of X-ray Fluorescence to Trace Analysis, Naval Res. Lab. Rept., 4 pp. Google ScholarCited by: 6. Campbell, William Joseph, Determination of calcium in wolframite concentrates by fluorescent x-ray spectrography / ([Washington, D.C.]: U.S.
Dept. of the Interior, Bureau of Mines, ), also by John W. Thatcher (page images at HathiTrust). Determination of calcium in wolframite concentrates by fluorescent x-ray spectrography / ([Washington, D.C.]: U.S.
Dept. of the Interior, Bureau of Mines, ), by William Joseph Campbell and John W. Thatcher (page images at HathiTrust). Absorption Effects in Mineral Analysis by Fluorescent X-Ray Spectrography Progress Report #2 [University of Denver] on *FREE* shipping on qualifying offers.
Absorption Effects in Mineral Analysis by Fluorescent X-Ray Spectrography Progress Report #2Author: University of Denver. An X-ray fluorescence method for the analysis of calcium in uranium in the range of 20 to ppm is described. U3O8 samples are mixed with boric acid binder and double-layer pellets are prepared.
The pellets are analysed using Philips PW semi-automatic X-ray spectrometer. Calculated lower limits of detection are better than 5 ppm for calcium in by: 2. Correction method for the X-ray fluorescent determination of iron, manganese, calcium and potassium in light matrices Author links open overlay panel G.
Vos Show moreCited by: 2. X-ray fluorescence (XRF) is the emission of characteristic "secondary" (or fluorescent) X-rays from a material that has been excited by being bombarded with high-energy X-rays or gamma phenomenon is widely used for elemental analysis and chemical analysis, particularly in the investigation of metals, glass, ceramics and building materials, and for research in geochemistry, forensic.
A simple, rapid and non destructive Wavelength Dispersive X-ray Fluorescence Spectrometry (WDXRFS) was developed for the determination of trace elements such as V, Cr, Co, Ni, Cu, Zn, Pb, Ba, La, Ce, Nd, Rb, Sr, Y, Zr, and Nb in carbonate rocks with high calcium by: 4.
Soil calcium (Ca) determines several characteristics of soil fertility and affects many plant functions after absorption. It is necessary to develop a method to quickly determine soil Ca content in situ because soil Ca content can vary considerably in natural environments.
Laboratory determination of Ca is laborious and costly. This study assessed the potential of field portable X-ray Cited by: Determination of chloride content in concrete structures can be carried out by the X-ray fluorescence technique.
However some problems affect measurement validity and limit the convenience of. DIN EN - Determination of certain substances in electrotechnical products - Part Screening - Lead, mercury, cadmium, total chromium and total bromine by X-ray fluorescence spectrometry; DIN - Testing of oxidic raw materials and basic materials - General bases of work for X-ray fluorescence method (XRF).
X-ray Fluorescence Determination of Element Contents in Milk and Dairy Products Article (PDF Available) in Food Analytical Methods 2(4) December with 1, Reads How we measure 'reads'Author: Galina Pashkova. X-ray powder diffraction can be a simple and fast method for monitoring the extent of crystallization and measuring the Ca/P ratio in the precipitates at any stage of HA wet synthesis.
The obtained quantitative dependences of the phase composition and (or) Ca/P ratio in the precipitates on the synthesis time can effectively be applied in processing.
XRF Spectrum of Pure Calcium, taken with an Innov-X a X-Ray Fluorescence spectrometer with a Si-PiN detector (Hardware settings: Source: Ta; Voltage: 40 kV; Current: 24 uA; Filter: uM Cu, Analytical Mode-FP algorithm, acquisition time 34s).
The sample was coated in oil and separated from the detector using a miL Mylar® sheet. Note the presence of trace Sr, Bi and Fe impurities. ANSI/HPS N– Radiation Safety for X-ray Diffraction and Fluorescence Analysis Equipment Available from the Health Physics Society, McLean, Virginia, ICS Code ICS Number Code (Fissile materials and nuclear fuel technology).
X-ray spectrography is a universal method applicable to nearly ail major and minor elements in silicates. The precision and speed have been shown to be superior to results obtained by wet methods (Baird et al., and Ia). An advantage ol $-ray analysis, usually unobtainable by wet-chemical procedures, is that the precision can be partly.
[Determination of major elements in soil from cancer village by X-ray fluorescence spectrometry]. [Article in Chinese] Wei ZL(1), Li H, Rui YK. Author information: (1)Key Laboratory for Molecular Biology, Department of Biology, Dezhou University, Dezhouby: 2.
Srivastava A, Heisinger BJ, Sinha V, Lee HK, Liu X, Qu M et al. Determination of minor and trace elements in kidney stones by x-ray fluorescence analysis. Cited by: 1. Elements Of X Ray Diffraction [Cullity, B D] on *FREE* shipping on qualifying offers.
Elements Of X Ray Diffraction3/5(2). D Standard Test Methods for Elemental Analysis of Lubricant and Additive Components—Barium, Calcium, Phosphorus, Sulfur, and Zinc by Wavelength-Dispersive X-Ray Fluorescence Spectroscopy barium content~ calcium content~ phosphorus content~ sulfur content~ zinc content~ elemental analysis~ ~ lubricant additives~.DETERMINATION OF () REFLECTIONS OF CLAY MINERALS BY MEANS OF COUNTER TYPE DIFFRACTION INSTRUMENTS C.
I. Rrcn, ,ni.a Agr'icul,tural, Experiment' Stati'on, Blacksburg, Virginia. The position of the () reflection is useful in distinguishing between dioctahedral and trioctahedral clay minerals (1).
A simple and rapid.X-Ray Physics of XRF XRF is a non destructive analytical technique that is used for elemental and chemical analysis. X-Ray Fluorescence Spectroscopy is the emission of characteristic secondary x material that has been excited by bombarding with be used to investigate metals, glass, ceramics and building materials, and for research inFile Size: 1MB.