NDLI: Effect of Long-time X-ray Irradiation on Cr and Hg in a Polypropylene Disk Certified Reference Material Observed during Measurements by X-ray Fluorescence Spectrometry.

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Effect of Long-time X-ray Irradiation on Cr and Hg in a Polypropylene Disk Certified Reference Material Observed during Measurements by X-ray Fluorescence Spectrometry.

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Effect of Long-time X-ray Irradiation on Cr and Hg in a Polypropylene Disk Certified Reference Material Observed during Measurements by X-ray Fluorescence Spectrometry.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Ohata, Masaki Kidokoro, Toshihiro
Description	Author Affiliation: Ohata M ( Inorganic Standards Group, Research Institute for Material and Chemical Measurement, National Metrology Institute of Japan (NMIJ), National Institute of Advanced Industrial Science and Technology (AIST).)
Abstract	The effect of long-time X-ray irradiation on Cr and Hg in a polypropylene disk certified reference material (PP disk CRM, NMIJ CRM 8136-a) during measurements by X-ray fluorescence (XRF) spectrometry was examined in the present study. The XRF intensities of Cr (K ), Hg (L ) and Pb (L ), obtained by an energy-dispersive (ED)-XRF spectrometer, showed the different intensity trends and the obtained XRF intensity ratios of Cr/Pb and Hg/Pb revealed decreasing and constant ratios, respectively, for long-time X-ray irradiation of up to 430 h. A similar decreasing trend of the Cr/Pb intensity ratio was also observed by wavelength-dispersive (WD)-XRF measurements for 120 h. Moreover, Cr, Hg and Pb in the PP disks obtained after long-time measurements by the WD-XRF spectrometer were measured by an ED-XRF spectrometer, and the loss of Cr was confirmed. From these results, Cr in the PP disk CRM, whose chemical form was an organometallic compound, was considered to be possibly lost during the XRF analysis for long-time or frequent measurements.
File Format	HTM / HTML
ISSN	09106340
e-ISSN	13482246
Journal	Analytical Sciences
Issue Number	8
Volume Number	31
Language	English
Publisher	The Japan Society for Analytical Chemistry
Publisher Date	2015-01-01
Publisher Place	Japan
Access Restriction	Open
Subject Keyword	Discipline Analytical Discipline Chemistry Techniques
Content Type	Text
Resource Type	Article
Subject	Analytical Chemistry

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Effect of Long-time X-ray Irradiation on Cr and Hg in a Polypropylene Disk Certified Reference Material Observed during Measurements by X-ray Fluorescence Spectrometry.

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Effect of Long-time X-ray Irradiation on Cr and Hg in a Polypropylene Disk Certified Reference Material Observed during Measurements by X-ray Fluorescence Spectrometry.

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