| 磷灰石的核磁共振研究(Ⅱ)——~1H的NMR谱学特征 |
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| 引用本文： | 刘羽,许涛,王少怀.磷灰石的核磁共振研究(Ⅱ)——~1H的NMR谱学特征[J].矿物学报,2009,29(4). |
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| 作者姓名： | 刘羽 许涛 王少怀 |
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| 作者单位： | 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 |
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| 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MAS NMR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~1H NMR共振吸收.而随着F~-对(OH)~-的取代,该峰强度变弱,同时在δ=L 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~1H NMR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.
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| 关 键 词： | 氟羟磷灰石 ~1H NMR谱 化学位移 |
Nuclear Magnetic Resonance Study of Apatite (Ⅱ):~1H NMR Spectroscopic Characteristics |
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| LIU Yu,XU Tao,WANG Shao-huai.Nuclear Magnetic Resonance Study of Apatite (Ⅱ):~1H NMR Spectroscopic Characteristics[J].Acta Mineralogica Sinica,2009,29(4). |
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| Authors: | LIU Yu XU Tao WANG Shao-huai |
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| Institution: | LIU Yu1,XU Tao2,WANG Shao-huai1 ( 1. College of Zijin Mining,Fuzhou University,Fujian 350108,China,2. School of Materials Science and Chemical Engineering,China University of Geosciences,Wuhan 430074,China) |
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| Abstract: | 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 resonance ( for short, called 5A ) occured at 5 = 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 5B ) occured at δ = 1.5 -1. 2, whose intensity correlate positively with F contents. It is presumed that δB is caused by the proton bonded with F ions. As the intensity ratios of δB/δA increased with F/OH mole ratios, it is possible to use ~1H NMR spectroscopy for the estimation of F relative contents in binary F-Hap. |
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| Keywords: | fluor-hydroxyl-apatite ~1H Nuclear Magnetic Resonance chemical shift |
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