| 用PIXE方法分析人发中微量元素时数据质量问题剖析 |
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| 引用本文： | 沙因,刘平生,张润华. 用PIXE方法分析人发中微量元素时数据质量问题剖析[J]. 原子能科学技术, 1988, 0(3) |
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| 作者姓名： | 沙因 刘平生 张润华 |
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| 作者单位： | 中国科学院高能物理研究所 北京(沙因,刘平生),中国科学院高能物理研究所 北京(张润华) |
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| 摘 要： | 头发是人体排泄微量元素的器官之一,头发中微量元素的含量间接地反映人体中微量元素的含量。头发中微量元素的含量能反映一定时间内人体微量元素含量的情况。它可以作为环境条件和人体功能的“指示器”,给出环境污染和人体健康与疾病的信息。而发样又
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| 关 键 词： | 质子激发X荧光分析 数据质量 |
AN ELEMENTARY ANALYSIS ON THE DATA QUALITY OF TRACE ELEMENT DETERMINATION IN HAIR BY PIXE |
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| SHA YIN,LIU PINGSHENG,ZHANG RUNHUA Institute of High Energy Physics,Academia Sinica,Beijing. AN ELEMENTARY ANALYSIS ON THE DATA QUALITY OF TRACE ELEMENT DETERMINATION IN HAIR BY PIXE[J]. Atomic Energy Science and Technology, 1988, 0(3) |
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| Authors: | SHA YIN LIU PINGSHENG ZHANG RUNHUA Institute of High Energy Physics Academia Sinica Beijing |
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| Abstract: | The data quality of trace element determination in human hair by PIXE isfairly improved, when three measures are adopted: 1, The sample is thinhomogeneous and smooth, especially the sample thicrness is controlled about 0.1-0.2 mg/cm; 2, Acomputer program with mutli-function for the analysis ofcomplex X-ray spectra (PAXMF) is used. Tbe PAXMF program not only gives outthe net areas of characteristic peaks but also can calculate the concentration ofelements in the sample, can subtract the interferences contributed by impuritiesin "blank sample" and can provide practical detection limits for the user; 3,System error is corrected by means of determination of trace elements in humanhair standard material. 16 trace elements are analysed in human hair sample by PIXE as anintercomprarision, the values of 7 elements (Ca, Ti, Mn, Fe, Ni, Zn, Pb) are ingood agreement with the recommended values. |
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| Keywords: | PIXE Data quality |
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