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Observation of fluorapatite formation under hydrolysis of tetracalcium phosphate in the presence of KF by means of soft X-ray emission and absorption spectroscopy

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Abstract

The effect of fluoride on the hydrolysis of tetracalcium phosphate (TTCP; Ca4(PO4)2O) in 0.1 mol/l KH2PO4 containing 62–83 mmol/l KF was studied with the help of X-ray fluorescence measurements. Fluorine X-ray emission and absorption spectra of the final product of hydrolysis and reference samples (CaF2 and Ca5(PO4)3F) were measured at Beamline BL-2C of Photon Factory (PF, Tsukuba). Based on these measurements we concluded that hydrolysis of TTCP in the presence of KF converts it into fluorapatite. Formation of CaF2, which is often found in the hydrolysis of hydroxyapatite at high fluoride concentration, was not observed.

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Authors and Affiliations

  1. Institute of Metal Physics, Russian Academy of Sciences – Ural Division, 620219, Yekaterinburg GSP-170, Russia

    E. Z. Kurmaev

  2. Section of Biomaterials Engineering, Faculty of Dental Science, Kyushu University, Fukuoka, 812-8582, Japan

    S. Matsuya

  3. Institute for Solid State Physics, Tokyo University, Roppongi, Minato-ku, Tokyo, 106-8666, Japan

    S. Shin, R. Eguchi, Y. Ishiwata & T. Takeuchi

  4. Institute of Materials Structure Science, Tsukuba, Ibaraki, 305-0801, Japan

    M. Watanabe & M. Iwami

  5. Research Laboratory for Surface Science, Faculty of Science, Okayama University, Okayama, 700-8530, Japan

    S. Matsuya

Authors
  1. E. Z. Kurmaev
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  2. S. Matsuya
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  3. S. Shin
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  4. M. Watanabe
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  5. R. Eguchi
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  6. Y. Ishiwata
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  7. T. Takeuchi
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  8. M. Iwami
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Kurmaev, E.Z., Matsuya, S., Shin, S. et al. Observation of fluorapatite formation under hydrolysis of tetracalcium phosphate in the presence of KF by means of soft X-ray emission and absorption spectroscopy. Journal of Materials Science: Materials in Medicine 13, 33–36 (2002). https://doi.org/10.1023/A:1013626316980

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  • DOI: https://doi.org/10.1023/A:1013626316980

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