Comparison of the Vibration Mode of Metals in HNO<sub>3</sub>by a Partial Least-Squares Regression Analysis of Near-Infrared Spectra
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- SAKUDO Akikazu
- School of Agricultural and Life Sciences, University of Tokyo Research Institute for Microbial Diseases, Osaka University
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- TSENKOVA Roumiana
- Faculty of Agriculture, Kobe University
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- TEI Kyoko
- Faculty of Agriculture, Kobe University
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- ONOZUKA Taisuke
- Faculty of Agriculture, Kobe University
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- IKUTA Kazuyoshi
- Research Institute for Microbial Diseases, Osaka University
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- YOSHIMURA Etsuro
- School of Agricultural and Life Sciences, University of Tokyo
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- ONODERA Takashi
- School of Agricultural and Life Sciences, University of Tokyo
書誌事項
- タイトル別名
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- Comparison of the Vibration Mode of Metals in HNO3 by a Partial Least-Squares Regression Analysis of Near-Infrared Spectra
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抄録
The near-infrared (NIR) spectra of such metals as Cu(II), Mn(II), Zn(II) and Fe(III) in HNO3 in the 700–1860 nm region were subjected to a partial least-squares regression analysis and leave-out cross-validation to develop chemometric models. The models yielded a coefficient of determination in cross validation of 0.9744 [Cu(II)], 0.9631 [Mn(II)], 0.9154 [Zn(II)] and 0.741 [Fe(III)]. The regression coefficients for Cu(II), Mn(II) and Zn(II), but not for Fe(III), showed strong negative peaks at around 1050–1200 nm, a zone where spectral bands have been reported to decrease with increasing pH value. A positive peak at around 710–750 nm, which may have been due to water absorption, was observed in regression coefficients of Cu(II), Mn(II) and Zn(II) but not in Fe(III), while a negative peak was observed in that for Fe(III) at around 710–750 nm. These results indicate that the divalent cations [Cu(II), Mn(II) and Zn(II)] showed different absorption in the NIR region from the trivalent cation [Fe(III)], suggesting that the vibration mode of water, which mirrors the interaction between cations and water, may be influenced by valency.
収録刊行物
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- Bioscience, Biotechnology, and Biochemistry
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Bioscience, Biotechnology, and Biochemistry 70 (7), 1578-1583, 2006
公益社団法人 日本農芸化学会
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詳細情報 詳細情報について
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- CRID
- 1390001206479912832
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- NII論文ID
- 130000029804
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- NII書誌ID
- AA10824164
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- ISSN
- 13476947
- 09168451
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- NDL書誌ID
- 7997690
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可