| SEM-EDXA法测定分析柠檬桉木材中的晶体 |
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| 引用本文： | 杨燕,邱坚. SEM-EDXA法测定分析柠檬桉木材中的晶体[J]. 浙江林学院学报, 2008, 25(2): 143-147 |
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| 作者姓名： | 杨燕 邱坚 |
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| 作者单位： | 西南林学院木质科学与装饰工程学院,云南,昆明650224 |
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| 基金项目： | 国家自然科学基金 , 云南省自然科学基金 , 教育部重点实验室基金 , 中国博士后基金第39批一等资助项目 , 云南省中青年学术技术带头人后备人才基金 |
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| 摘 要： | 采用扫描电子显微镜-X射线能量散射分析（SEM—EDXA）法对柠檬桉Eucalyptus citriodora木材中晶体的轴向分布、径向分布、形态和含量以及硅石的纳米结构进行了分析。结果表明：①柠檬桉木材中晶体主要分布在木射线细胞，形态多为菱形晶体；②柠檬桉木材钙元素含量高的可达所有元素含量的22％以上；③柠檬桉木材中晶体的纳米尺寸在350～400nm，晶体尺寸大小从树基向树梢呈递减趋势。图4表1参9
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| 关 键 词： | 林业工程 晶体 柠檬桉木材 扫描电镜-X射线能谱法 形态 分布 |
| 文章编号： | 1000-5692(2008)02-0143-05 |
| 修稿时间： | 2007-04-28 |
Distribution of crystals in Eucalyptus citriodora using scanning electron microscopy and energy dispersive X-ray analysis(SEM-EDXA) |
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| YANG Yan,QIU Jian. Distribution of crystals in Eucalyptus citriodora using scanning electron microscopy and energy dispersive X-ray analysis(SEM-EDXA)[J]. Journal of Zhejiang Forestry College, 2008, 25(2): 143-147 |
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| Authors: | YANG Yan QIU Jian |
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| Affiliation: | (Faculty of Wood Science and Decoration Engineering, Southwest Forestry College, Kunming 650224, Yunnan, China) |
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| Abstract: | The distribution, morphology, content, and nanostructure of crystals in axial and radial distributions of Eucalyptus citriodora were studied using Scanning Electron Microscopy and Energy Dispersive X-Ray Analysis （SEM-EDXA）. The samples were 30-year-old trees, having 30 annual rings, 20 -23 cm of diameter at breast height. The results were as follows ： （ 1 ） crystals were mainly deposited in the ray cells and had a diamond shape; （2）elemental Ca content was above 22%; and （3）crystals in E. citriodora were between 350 to 400 nm decreasing gradually from the lower part of the tree to the upper part. [ Ch, 4 fig. 1 tab. 9 ref. ] |
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| Keywords: | forest engineering crystal Eucalyptus citriodora wood SEM-EDXA morphology distribution |
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