| ID | 111227 |
| Title Alternative | Analysis of hexavalent chromium species in household articles by a laboratory-type X-ray absorption spectrometer
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| Author |
Yamamoto, Takashi
The University of Tokushima
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Kondo, Masaya
The University of Tokushima
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| Keywords | 六価クロム定量分析
実験室系XAFS
皮革製品
クロメート
蛍光X線分析
Hexavalent chromium
Laboratory-type XAFS spectrometer
Leather products
Chromate conversion coatings
EDX
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| Content Type |
Journal Article
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| Description | 身の回りにあるクロムを含む多様な物品のクロムK 殻X 線吸収スペクトルを実験室系装置により測定し，XANES スペクトル解析により三価クロム種に対する六価種の定量分析を行った．高感度および高分解モードのスリット設定で測定されたXANES スペクトルの形状比較より，定量分析のために適した測定条件について論じた．全クロム中六価クロム種の定量はプリエッジピーク高さを用い，二種類の六価クロム化合物を用いても検量線の傾きの差は 1% であった．解析の結果，測定した三点の革製品およびクロム白雲母には六価クロム種は含まれていなかった．虹色光沢を呈したクロメート試料からは六価クロム種が検出された．
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| Description Alternative | Cr K-edge XANES spectra of various kinds of household articles such as leather products and chromate conversion coatings were recorded with a laboratory-type X-ray absorption spectrometer for quantitative analysis of hexavalent chromium species. The low energy resolution settings were found to be enough and suitable for the quantitative analyses with the spectrometer. The tiny but distinct preedge peak characteristics to hexavalent chromium species could be detected in XANES spectra of chromate conversion coatings with iridescent color, and the ratios of hexavalent to sum of hexa- and trivalent chromium species (Cr6 + /(Cr6 + + Cr3 + )) were calculated by the preedge peak height.
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| Journal Title |
Advances in X-Ray Chemical Analysis, Japan
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| ISSN | 09117806
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| NCID | AN0000592X
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| Publisher | 日本分析化学会
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| Volume | 47
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| Start Page | 99
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| End Page | 109
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| Published Date | 2016-03-31
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| Rights | ©公益社団法人日本分析化学会X線分析研究懇談会
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| EDB ID | |
| FullText File | |
| language |
jpn
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| TextVersion |
Publisher
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| departments |
Science and Technology
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