| 应用改良的Dumas法制备微量生物样品及其15N丰度的发射光谱测定 |
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| 引用本文： | 吴肖菊,叶庆富.应用改良的Dumas法制备微量生物样品及其15N丰度的发射光谱测定[J].中国农业大学学报,1988(3):337-342. |
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| 作者姓名： | 吴肖菊 叶庆富 |
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| 摘 要： | 本文详细地介绍了用发射光谱仪 NOI-5型(15)~N 分析仪与改良杜马氏法联用成功地获得(15)~N 标记尿素相当于5-10ug 样品制备的操作规程。同时,为提高样品的制备效率还介绍了采用多支标准磨口放电管架的改进杜马氏法样品制备的高真空系统装置。测定的发射光谱是稳定的、重现性好、能达到精确度标准。
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| 关 键 词： | 精确度 重现性 放电管 高真空 发射光谱测定 生物样品 样品制备 毛细管 真空系统 丰度 |
THE PREPARATION OF THE MICRO-BIOLOGICAL SPECIMENS WITH IMPROVED DUMAS METHOD AND THE ~(15)N ABUNDANCE DETERMINATION WITH EMISSION SPECTROMETRY |
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| Wu Xiaoju Yie Qingfu.THE PREPARATION OF THE MICRO-BIOLOGICAL SPECIMENS WITH IMPROVED DUMAS METHOD AND THE ~(15)N ABUNDANCE DETERMINATION WITH EMISSION SPECTROMETRY[J].Journal of China Agricultural University,1988(3):337-342. |
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| Authors: | Wu Xiaoju Yie Qingfu |
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| Abstract: | The details of operation procedures for preparaing 5-10 ug of ~(15)N labelled Urea specimens with Model NOI-5 Emission Spectrographyco- upling with improved Dumas method and a high vaccum system devise with multiple S discharge tubes are described.This devise is effecient for preparaing the micro-biological specimens and of which the Emissi- on spectrums determined are stable,well repeating and higher accur- acy. |
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