Comparison of the Vibration Mode of Metals in HNO3 by a Partial Least-Squares Regression Analysis of Near-Infrared Spectra
-
- SAKUDO Akikazu
- School of Agricultural and Life Sciences, University of Tokyo Research Institute for Microbial Diseases, Osaka University
-
- TSENKOVA Roumiana
- Faculty of Agriculture, Kobe University
-
- TEI Kyoko
- Faculty of Agriculture, Kobe University
-
- ONOZUKA Taisuke
- Faculty of Agriculture, Kobe University
-
- IKUTA Kazuyoshi
- Research Institute for Microbial Diseases, Osaka University
-
- YOSHIMURA Etsuro
- School of Agricultural and Life Sciences, University of Tokyo
-
- ONODERA Takashi
- School of Agricultural and Life Sciences, University of Tokyo
Bibliographic Information
- Other Title
-
- Comparison of the Vibration Mode of Metals in HNO<sub>3</sub>by a Partial Least-Squares Regression Analysis of Near-Infrared Spectra
Search this article
Abstract
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.
Journal
-
- Bioscience, Biotechnology, and Biochemistry
-
Bioscience, Biotechnology, and Biochemistry 70 (7), 1578-1583, 2006
Japan Society for Bioscience, Biotechnology, and Agrochemistry
- Tweet
Details 詳細情報について
-
- CRID
- 1390001206479912832
-
- NII Article ID
- 130000029804
-
- NII Book ID
- AA10824164
-
- ISSN
- 13476947
- 09168451
-
- NDL BIB ID
- 7997690
-
- Text Lang
- en
-
- Data Source
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- Abstract License Flag
- Disallowed