| Tartalom: |
http://onlinelibrary.wiley.com/doi/10.1002/jrs.1964/abstr... |
| Archívum: |
MTA Könyvtár |
| Gyűjtemény: |
Status = Published
Type = Article
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| Cím: |
FT-Raman and FTIR spectroscopic characterization of biogenic carbonates from Philippine venus seashell and Porites sp coral
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| Létrehozó: |
Zakaria, F. Z.
Mihály, Judith
Sajó, István
Katona, Róbert
Hajba, László
Mink, János
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| Dátum: |
2008
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| Téma: |
QC Physics / fizika
QC02 Optics / fénytan
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| Tartalmi leírás: |
Some seashells of the Philippine venus species and sea coral of
Porites
sp. were studied by means of FT-Raman, Fourier transform
infrared
spectroscopy (FTIR) and Far-FTIR spectroscopic methods. The
Raman
spectra show that both Porites sp. and A venus are of
aragonite-structured CaCO3. Detailed spectral analysis, however,
reveals some small differences, due to differences in the
crystallite
size or habit and to different minor element contents. IR
spectra show
that Porites sp. contains also some small quantities of
calcite-structured carbonates. The nu(2) band (shoulder) of
calcite at
875.7 cm(-1) is present in the IR spectrum. The separation of
the two
nu(2) bands (856.4 cm(-1) for aragonite and 875.7 cm(-1) for
calcite)
suggests the absence of solid solution of the two polymorphic
phases of
CaCO3. Spectroscopic results were confirmed also by X-ray powder
diffraction measurements. Copyright (c) 2008 John Wiley & Sons,
Ltd.
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| Típus: |
Article
PeerReviewed
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| Formátum: |
text
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| Azonosító: |
Zakaria, F. Z. and Mihály, Judith and Sajó, István and Katona, Róbert and Hajba, László and Mink, János (2008) FT-Raman and FTIR spectroscopic characterization of biogenic carbonates from Philippine venus seashell and Porites sp coral. JOURNAL OF RAMAN SPECTROSCOPY, 39 (9). pp. 1204-1209. ISSN 0377-0486
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