| 表面化学分析与标准化 |
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| 引用本文： | 刘芬. 表面化学分析与标准化[J]. 分析测试技术与仪器, 2013, 19(3): 182-190. |
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| 作者姓名： | 刘芬 |
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| 作者单位： | 1.中国科学院 化学研究所, 北京 100190 |
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| 摘 要： | 对表面化学分析标准化作了概述. 介绍了标准管理机构和标准制订程序. 还介绍了表面化学分析的相关标准和标准应用实例.
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| 关 键 词： | 表面化学分析 标准化 电子能谱 |
| 收稿时间： | 2013-07-03 |
| 修稿时间： | 2013-09-02 |
Surface Chemical Analysis and Standardization |
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| LIU Fen. Surface Chemical Analysis and Standardization[J]. Analysis and Testing Technology and Instruments, 2013, 19(3): 182-190. |
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| Authors: | LIU Fen |
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| Affiliation: | 1.Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China |
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| Abstract: | Nails diagnosis as a kind of traditional Chinese medicine diagnosis method has its limitations in modern healthcare. Using a digital microscope and a scanning electron microscope(SEM), nine different kinds of human nails, such as normal nails, wide nails, sunken flat nails, narrow strip nails, are studied. From the different microstructure morphologies of nails, three conclusions are drawn. First, the nail cuticle tissues of normal nails have a smooth and dense lamellar structure, with a laminated growth, a small interlayer gap and no defects or holes. While those of abnormal nails, have a damaged lamellar structure, which has a large interlayer gap and a rough surface with local holes or granular structure. Second, the secondary electronic signal images obtained from the SEM can indirectly infer the level of metal trace elements with atomic number less than 20 in nails. Third, combining the microstructure of nails and the macroscopic nail diagnosis, we can make their respective advantages complementary to each other and make the best of them both. Through the comparison of macro and micro characteristics of different nails, the feature of different kinds of nails can be analysed comprehensively, and through the analysis of all kinds of nails, we can infer the health of human body's more accurately. It is of great significance to the development of TCM "Nail Diagnosis". |
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| Keywords: | microstructure human nails morphology analysis |
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