| 用激光诱导击穿光谱技术比较土豆和百合中的微量元素 |
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| 引用本文： | 张大成,马新文,朱小龙,李斌,祖凯玲.用激光诱导击穿光谱技术比较土豆和百合中的微量元素[J].光谱学与光谱分析,2009,29(5):1189-1192. |
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| 作者姓名： | 张大成 马新文 朱小龙 李斌 祖凯玲 |
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| 作者单位： | 1. 中国科学院近代物理研究所,甘肃兰州,730000;中国科学院研究生院,北京,100039
2. 中国科学院近代物理研究所,甘肃兰州,730000 |
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| 摘 要： | 激光诱导击穿光谱(LIBS)已成功地运用于固体、液体、气体样品中微量元素的测量以及微生物、细菌等的鉴别分析上,而在植物样品上面的应用则是一个较新的课题.该实验用纳秒Nd:YAG激光器击穿真空冻干的土豆、百合样品,用光纤光谱仪测量了其LIBS光谱.通过鉴别、分析LIBS光谱,得到了这两种样品中微量元素的成分.并且对土豆干和百合干中Ca,Na,K,Fe,Al,Mg六种金属元素典型谱线的强度进行了统计分析,并由此得到了样品中这六种微量元素含量的对比情况.实验结果表明土豆干中的Ca和Na等含量都明显高于百合干,而百合干中Mg的含量较高.实验结果还表明用LIBS技术检测、对比冻干植物样品中微量元素含量是一种快速、有效的分析方法.
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| 关 键 词： | 激光诱导击穿光谱 等离子体 植物样品 微量元素 |
| 收稿时间： | 2007/11/16 |
Microelements in Potato and Lily Samples Studied by Laser-Induced Breakdown spectroscopy Technology |
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| ZHANG Da-cheng,MA Xin-wen,ZHU Xiao-long,LI Bin,ZU Kai-ling.Microelements in Potato and Lily Samples Studied by Laser-Induced Breakdown spectroscopy Technology[J].Spectroscopy and Spectral Analysis,2009,29(5):1189-1192. |
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| Authors: | ZHANG Da-cheng MA Xin-wen ZHU Xiao-long LI Bin ZU Kai-ling |
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| Institution: | ZHANG Da-cheng1,2,MA Xin-wen1,ZHU Xiao-long1,LI Bin1,ZU Kai-ling1 1.Institute of Modern Physics,the Chinese Academy of Sciences,Lanzhou 730000,China 2.Graduate University of Chinese Academy of Sciences,Beijing 100039,China |
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| Abstract: | A LIBS setup was built in the Institute of Modern Physics.In our experiments,LIBS spectra produced by infrared radiation of Nd:YAG nanosecond laser with 100 and 150 mJ pulse energy,respectively,were measured by fiber optic spectrometer in the ranges of 230-430 nm and 430-1 080 nm with a delay time of 1.7 and gate width of 2 ms for potato and lily samples prepared by vacuum freeze-dried technique.The lines from different metal elements such as K,Ca,Na,Mg,Fe,Al,Mn and Ti,and nonmetal elements such as C,N,O an... |
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| Keywords: | Laser-induced breakdown spectroscopy Plasma Plant sample Microelement |
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