Comparing three sample preparation techniques for portable X-ray fluorescence: A case study of Coarse Orange ceramic jars, Veracruz, Mexico

2022 ◽  
Vol 41 ◽  
pp. 103315
Author(s):  
Marc D. Marino ◽  
Wesley D. Stoner ◽  
Lane F. Fargher ◽  
Michael D. Glascock
Keyword(s):  
Sample Preparation ◽  
X Ray ◽  
Preparation Techniques

Application of XRF in the Aluminum Industry

1992 ◽  
Vol 36 ◽  
pp. 121-137
Author(s):  
Frank R. Feret
Keyword(s):  
Sample Preparation ◽  
Aluminum Industry ◽  
Raw Materials ◽  
Fluorescence Analysis ◽  
Aluminum Production ◽  
X Ray ◽  
Xrf Analysis ◽  
The Aluminum Industry ◽  
Preparation Techniques

X-ray fluorescence analysis has been used in the aluminum industry since the beginning of the 1950's. Initial applications involved predominantly raw materials such as bauxite. During the last decades its use expanded to every stage of aluminum production and today, XRF analysis is a recognized analyticaI technique, applied routinely in exploration, reduction and fabrication processes. Typical XRF applications in the aluminum industry at present are listed in Table 1. The number of determinations given represents usual industrial requirements, and may vary between laboratories. The sample preparation techniques are again the most commonly used for the applications.

Comparison of Three Sample Preparation Techniques for Determination of Organic Bromide and Chloride in Halogenated Lipids by X-Ray Fluorescence Spectroscopy

1980 ◽  
Vol 63 (4) ◽  
pp. 709-712
Author(s):  
Henry B S Conacher ◽  
Rajinder K Chadha ◽  
Gladys Lacroix
Keyword(s):  
Thin Film ◽  
Sample Preparation ◽  
Fluorescence Spectroscopy ◽  
Vegetable Oils ◽  
X Ray ◽  
Thin Film Technique ◽  
High Concentrations ◽  
Preparation Techniques

Abstract Three sample preparation techniques—thin-film, solution, and cellulose pellet—were applied to the determination of bromide in brominated lipids by X-ray fluorescence spectroscopy. Using brominated vegetable oils of known bromide content it was demonstrated that the thin-film technique could result in erroneously high bromide contents, which could also vary with the amount of oil applied, depending on the solvent used. As solutions in hexane, slightly high bromide contents were observed at high concentrations. With the cellulose pellets, bromide contents similar to known values were observed. It was concluded that the cellulose pellet procedure, although more time consuming, and less convenient for ready recovery of sample, was the most suitable for organic bromide determination. Similar results were indicated for chlorinated oils.

X-Ray Spectrographic Analysis of Rare Earths in Yttrium-Iron Garnet Powders

1962 ◽  
Vol 6 ◽  
pp. 389-395
Author(s):  
J. C. Lloyd ◽  
J. D. Kuptsis
Keyword(s):  
Sample Preparation ◽  
Rare Earths ◽  
Yttrium Iron Garnet ◽  
Yttrium Iron ◽  
X Ray ◽  
Straight Line ◽  
Precision And Accuracy ◽  
Iron Garnet ◽  
Preparation Techniques ◽  
Better Than

AbstractAnalysis schemes for eleven rare earths (Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm, Yb) taken singly in Y-Fe garnet powders are presented. Straight-line calibrations result in all cases, usually over a range from below 0.5 wt.% to better than 6 wt.%. Errors were held to ±5-10% even using extraordinarily simple sample preparation techniques. Data are presented relating to the effects of particle size and sample preparation on precision and accuracy of the resulting analysis.

X-ray photoelectron, Cu L3MM Auger and X-ray absorption spectroscopic studies of Cu nanoparticles produced in aqueous solutions: The effect of sample preparation techniques

2012 ◽  
Vol 258 (20) ◽  
pp. 8214-8221 ◽  
Author(s):  
Svetlana Saikova ◽  
Sergey Vorobyev ◽  
Maxim Likhatski ◽  
Alexander Romanchenko ◽  
Simon Erenburg ◽  
...  
Keyword(s):  
Sample Preparation ◽  
Aqueous Solutions ◽  
Spectroscopic Studies ◽  
Cu Nanoparticles ◽  
X Ray ◽  
X Ray Absorption ◽  
Preparation Techniques

Document Examination Using Scanning Electron Microscopy & X-Ray Spectrometry

1985 ◽  
Vol 43 ◽  
pp. 126-127
Author(s):  
P. J. Nolan
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Sample Preparation ◽  
Alternative Methods ◽  
X Ray ◽  
Special Sample Preparation ◽  
Ink Analysis ◽  
Printing Ink ◽  
Preparation Techniques ◽  
Scanning Electron

This paper reviews the application of scanning electron microscopy and x-ray spectrometry to the examination of questioned documents that have been submitted to the author's laboratory. The use of the SEM is confined to examples where it can provide information unobtainable by alternative methods. This is demonstrated using a variety of examples including paper and printing ink analysis, and the examination of valuable documents, such as stamps. The strategy followed when attempting to determine the sequence of overlapping or intersecting writings is discussed. Special sample preparation techniques are explained and guidelines for optimizing instrumental conditions for different sample types are outlined.

Elemental Analysis of Chemically Modified Cotton Textiles

1966 ◽  
Vol 20 (5) ◽  
pp. 326-329 ◽  
Author(s):  
Biagio Piccolo ◽  
Donald Mitcham ◽  
Verne W. Tripp ◽  
Robert T. O'Connor
Keyword(s):  
Particle Size ◽  
Sample Preparation ◽  
Counting Rate ◽  
Cotton Fabrics ◽  
X Ray ◽  
Chemically Modified ◽  
Fabric Structure ◽  
Cotton Textiles ◽  
Preparation Techniques

X-ray fluorescence has been applied to the analysis of a wide variety of chemically treated cotton textiles. Sample-preparation techniques suitable for the determination of elements heavier than Na have been developed, and the effect of fabric structure on counting rate has been investigated. Selected examples of results obtained in the analysis of some 20 elements applied to cotton fabrics are given. The problem of particle size when the element is in the form of pigment is discussed.

Features of sample preparation techniques in the total-reflection X-ray fluorescence analysis of tea leaves

2021 ◽  
Vol 343 ◽  
pp. 128502
Author(s):  
Artem S. Maltsev ◽  
Elena V. Chuparina ◽  
Galina V. Pashkova ◽  
Julia V. Sokol'nikova ◽  
Olga V. Zarubina ◽  
...  
Keyword(s):  
Sample Preparation ◽  
Fluorescence Analysis ◽  
Total Reflection ◽  
Tea Leaves ◽  
X Ray ◽  
Preparation Techniques
Sign in / Sign up

Export Citation Format

Share Document