Development of energy dispersive X-ray fluorescence spectrometer with monochromatic excitation for the direct determination of trace elements in organic matrices.
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- WAKISAKA Tatsushi
- Kao Corporation,Material Research Laboratories
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- MORITA Naoki
- Kao Corporation,Material Research Laboratories
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- WAKASA Masanobu
- Kao Corporation,Material Research Laboratories
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- TERADA Shinichi
- Technos Co., Ltd.
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- NISHIHAGI Kazuo
- Technos Co., Ltd.
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- TANIGUCHI Kazuo
- Department of Solid State Electronics,University of Osaka Electro-Communication
Bibliographic Information
- Other Title
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- 有機物マトリックス中の微量元素の直接定量を目的とした単色化X線源を用いるエネルギー分散型蛍光X線装置の開発
- ユウキブツ マトリックスチュウ ノ ビリョウ ゲンソ ノ チョクセツ テイリョ
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Abstract
An energy dispersive X-ray fluorescence spectrometer (EDXRF) with monochromatic excitation has been developed for the direct determination of trace elements in organic matrices. Monochromatization of X-rays by a crystal monochromator is effective in improving the signal to background ratio.Detection limits are less than 0.1 μg g-1 by monochromatic excitation of Mo-Kα (17.4 keV) X-ray tube. But Ag, Cd and Sn can't be determined. The newly-constructed EDXRF with a combination of three monochromatic excitations (9.7, 17.4 and 40keV), can offer a higher sensitivity for the elements of atomic number larger than 22 (Ti). At optimum conditions, detection limits of 0.020.34 μg g-1 (mean value, 0.13 μg g-1) are ascertained for the 22 elements determined (TiHg and Bi), and satisfactory precision (within 1% R.S.D.) is obtained. The proposed method is applied to the direct determination of trace elements in the NIST fuel oil (SRM 1634b), and others. The results are in good agreement with the certified values.
Journal
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- BUNSEKI KAGAKU
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BUNSEKI KAGAKU 45 (10), 933-939, 1996
The Japan Society for Analytical Chemistry
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Keywords
Details 詳細情報について
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- CRID
- 1390282679030399360
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- NII Article ID
- 110002907295
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- NII Book ID
- AN00222633
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- COI
- 1:CAS:528:DyaK28XmtFyhsLs%3D
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- NDL BIB ID
- 4056992
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- ISSN
- 05251931
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- NDL-Digital
- CiNii Articles
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- Abstract License Flag
- Disallowed