Portable TXRF Spectrometer with 10{sup -11}g Detection Limit and Portable XRF Spectromicroscope with Sub-mm Spatial Resolution

Journal Article · Tue Apr 06 00:00:00 EDT 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3399251· OSTI ID:21371762

Kunimura, Shinsuke; Hatakeyama, So; Sasaki, Nobuharu; Yamamoto, Takashi; Kawai, Jun ^[1]

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1. Department of Materials Science and Engineering, Kyoto University, Sakyo-ku, Kyoto, 606-8501 (Japan)

A portable total reflection X-ray fluorescence (TXRF) spectrometer that we have developed is applied to trace elemental analysis of water solutions. Although a 5 W X-ray tube is used in the portable TXRF spectrometer, detection limits of several ppb are achieved for 3d transition metal elements and trace elements in a leaching solution of soils, a leaching solution of solder, and alcoholic beverages are detected. Portable X-ray fluorescence (XRF) spectromicroscopes with a 1 W X-ray tube and an 8 W X-ray tube are also presented. Using the portable XRF spectromicroscope with the 1 W X-ray tube, 93 ppm of Cr is detected with an about 700 {mu}m spatial resolution. Spatially resolved elemental analysis of a mug painted with blue, red, green, and white is performed using the two portable spectromicroscopes, and the difference in elemental composition at each paint is detected.

• OSTI ID: 21371762
• Journal Information: AIP Conference Proceedings, Vol. 1221, Issue 1; Conference: 20. international congress on X-ray optics and microanalysis, Karlsruhe (Germany), 15-18 Sep 2009; Other Information: DOI: 10.1063/1.3399251; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ABSORPTION SPECTROSCOPY
AQUEOUS SOLUTIONS
BEVERAGES
CHROMIUM
MULTI-ELEMENT ANALYSIS
PAINTS
PORTABLE EQUIPMENT
QUANTITATIVE CHEMICAL ANALYSIS
SENSITIVITY
SOILS
SPATIAL RESOLUTION
SYNCHROTRON RADIATION
TRACE AMOUNTS
X-RAY FLUORESCENCE ANALYSIS
BREMSSTRAHLUNG
CHEMICAL ANALYSIS
COATINGS
DISPERSIONS
ELECTROMAGNETIC RADIATION
ELEMENTS
EQUIPMENT
FOOD
HOMOGENEOUS MIXTURES
METALS
MIXTURES
NONDESTRUCTIVE ANALYSIS
RADIATIONS
RESOLUTION
SOLUTIONS
SPECTROSCOPY
TRANSITION ELEMENTS
X-RAY EMISSION ANALYSIS