Endo T, Amano N, Yoshida M, Murakami H, Kosuge N, Ohmi Y, Kameda A
Shika Kiso Igakkai Zasshi. 1989 Oct;31(5):542-63. doi: 10.2330/joralbiosci1965.31.542.
About apatite produced with a silicahydro gel method using calcium nitrate (group I) or calcium chloride (group II) and a gelatin gel method by use of calcium nitrate (group III) or calcium chloride (group IV), the formative volume as well as the formative condition of a periodic-layered precipitate (Liesegang ring), the pH measurement, calculation of Ca/P ratio, an estimation of the chlorine ion, morphological observation with a scanning electron microscope, qualitative analyses by X-ray diffraction (identification, crystallite size, lattice imperfections, lattice constants) and the composition analysis by infrared absorption spectroscopy were carried out to elucidate the formation of apatite using the gel method. The result showed that there were no distinct differences between group I-II and group III-IV, and it is suggested that it is possible to form satisfact fluorapatite with a gel method using calcium chloride as well as calcium nitrate.
关于采用硝酸钙（第一组）或氯化钙（第二组）的硅胶水凝胶法以及使用硝酸钙（第三组）或氯化钙（第四组）的明胶凝胶法制备的磷灰石，进行了周期性层状沉淀（李塞冈环）的形成体积和形成条件、pH测量、Ca/P比计算、氯离子估算、扫描电子显微镜形态观察、X射线衍射定性分析（鉴定、微晶尺寸、晶格缺陷、晶格常数）以及红外吸收光谱组成分析，以阐明使用凝胶法形成磷灰石的情况。结果表明，第一 - 二组和第三 - 四组之间没有明显差异，并且表明使用氯化钙以及硝酸钙通过凝胶法有可能形成令人满意的氟磷灰石。
