磷灰石的核磁共振研究（Ⅱ）——1H的NMR谱学特征  

Nuclear Magnetic Resonance Study of Apatite（ Ⅱ ） ： 1H NMR Spectroscopic Characteristics

作　　者：刘羽[1] 许涛[2] 王少怀[1] 

机构地区：[1]福州大学紫金矿业学院,福建福州350108 [2]中国地质大学材料科学与化学工程学院,湖北武汉430074

出　　处：《矿物学报》2009年第4期413-416,共4页Acta Mineralogica Sinica

摘　　要：对F-/(F-+OH-)为0%～90%的十个氟羟磷灰石固溶体样品进行1H核的MASNMR分析结果表明:羟磷灰石在δ=0.3处有与O形成氢键的羟基引起的1HNMR共振吸收。而随着F-对(OH)-的取代,该峰强度变弱,同时在δ=1.5～1.2的位置上,出现新的、由与F成氢键的H引起的共振吸收,其强度与F-含量呈正相关关系。由此可以根据氟羟磷灰石1HNMR峰的数量、位置和相对强度的变化,推断其结构通道中F—OH的相对含量和通道离子链状态。The independence of 1H NMR spectral behavior of fluoridated hydroxyl-apatite （F-Hap） on its different contents of OH, F was investigated. 10 synthesized F-Hap solid solutions with different F/OH mole frictions were analyzed and the following features were found ： A sharp resonanee（ for short, called 8A ） oeeured at 8 = 0. 3 for pure hydroxyl apatite, which formed by the proton bonded with O. With substitution of F for OH, a new resonance （ for short, called 8B ） oceured at 8 = 1.5 - 1.2, whose intensity correlate positively with F contents. It is presumed that 8B is caused by the proton bonded with F ions. As the intensity ratios of 8B/SA increased with F/OH mole rati- os, it is possible to use 1H NMR spectroscopy for the estimation of F relative contents in binary F-Hap.

关 键 词：氟羟磷灰石 1H NMR谱 化学位移 

分 类 号：P574[天文地球—矿物学] P578.92[天文地球—地质学]