Differentiation between hydroxyapatite and β-tricalcium phosphate by means of μ-raman spectroscopy
Differentiation between hydroxyapatite and β-tricalcium phosphate by means of μ-raman spectroscopy
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DOI：
10.1016/s0955-2219(98)00057-0
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发表时间：
1998-01-01
影响因子：
5.7
通讯作者：
Artus, L
中科院分区：
文献类型：
--
作者：
Cusco, R;Guitian, F;Artus, L
对多晶β-磷酸三钙(β-TCP)和羟基磷灰石(HA)的拉曼光谱进行了比较研究。由于它们的结构差异，拉曼散射不仅可以通过检测与羟基磷灰石的羟基相关的振动模式，还可以通过比较来自内部PO43-模式的谱带来区分这两种钙磷酸盐。与PO43-键弯曲模式相关的拉曼散射带的宽度和它们之间的频隙是可以用来区分P-TCP和HA的特征特征。该方法用于识别浸泡在模拟体液中的TCP-硅灰石共晶表面析出的几微米厚的HA层。(C)1998年爱思唯尔科学有限公司。版权所有。
We present a comparative study of the Raman spectra of polycrystalline beta-tricalcium phosphate (beta-TCP) and hydroxyapatite (HA) over their whole optical frequency range. Due to their structural differences, Raman scattering permits to differentiate between these two calcium phosphates, not only through the detection of vibrational modes associated with the OH- group of hydroxyapatite, but also by comparing the bands arising from internal PO43- modes. The widths of the Raman-scattering bands associated with PO43- bond-bending modes and the frequency gap between them are characteristic features that can be used to distinguish between P-TCP and HA. The method is used to identify a HA layer a few microns thick which precipitates on the surface of TCP-wollastonite eutectic soaked in simulated body fluid. (C) 1998 Elsevier Science Limited. All rights reserved.