Oniki T, Doi Y
Calcif Tissue Int. 1983 Jul;35(4-5):538-41. doi: 10.1007/BF02405090.
The ESR spectra of oxovanadium(IV) ions, (VO2+), adsorbed on hydroxyapatite(OHAp), fluorhydroxyapatite(FHAp), Mg-containing tricalcium phosphate(Mg-TCP), .octacalcium phosphate (OCP), dicalcium phosphate dihydrate (DCPD), and amorphous calcium phosphate(ACP) were measured at room temperature. The ESR parameters of VO2+ adsorbed on these compounds were slightly different from one another and accordingly, the ESR technique by use of VO2+ was useful for an analysis of the calcium phosphates precipitated from supersaturated solutions. The ESR parameters of VO2+ adsorbed on ACP and Mg-TCP were found to be very similar to each other, suggesting that ACP and TCP resemble each other in the structure of their crystal surfaces.
在室温下测量了吸附在羟基磷灰石（OHAp）、氟羟基磷灰石（FHAp）、含镁磷酸三钙（Mg-TCP）、八钙磷酸钙（OCP）、二水磷酸二钙（DCPD）和无定形磷酸钙（ACP）上的氧钒（IV）离子（VO2+）的电子自旋共振（ESR）光谱。吸附在这些化合物上的VO2+的ESR参数彼此略有不同，因此，利用VO2+的ESR技术可用于分析从过饱和溶液中沉淀出的磷酸钙。发现吸附在ACP和Mg-TCP上的VO2+的ESR参数非常相似，这表明ACP和TCP在晶体表面结构上彼此相似。
