A promising method was proposed for the first time for purification of animal bone tissue fragments from high-molecular weight compounds in biphase media containing high-pressure CO2 (solutions of carbonic and peroxycarbonic acids). The efficiency of this purification was confirmed by SEM and IR spectroscopy. It turned out that, during the exposure of bone fragments in solutions of carbonic and peroxycarbonic acids at high CO2 pressure, mineral phase components of bone tissue are also extracted, which can be used to obtain highly dispersed hydroxyapatite particles upon extract reprecipitation. The structure and composition of the extracts were investigated by X-ray diffraction and scanning electron microscopy (SEM).

中文翻译：

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一种在含有高压 CO2 的双相介质中纯化和修饰异种骨移植材料的方法

首次提出了一种有前途的方法，用于在含有高压 CO2 的双相介质（碳酸和过氧碳酸溶液）中从高分子量化合物中纯化动物骨组织碎片。SEM 和 IR 光谱证实了这种纯化的效率。结果表明，在高 CO2 压力下将骨碎片暴露在碳酸和过氧碳酸溶液中时，骨组织的矿物相成分也被提取出来，可用于提取物再沉淀后获得高度分散的羟基磷灰石颗粒。通过X射线衍射和扫描电子显微镜（SEM）研究提取物的结构和组成。