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首页> 外文期刊>Journal of synchrotron radiation >Determination of the distribution of trace elements in human hair as a function of the position on the head by SRXRF AND TXRF
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Determination of the distribution of trace elements in human hair as a function of the position on the head by SRXRF AND TXRF

机译：通过SRXRF和TXRF确定人发中微量元素的分布与头部位置的关系

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On reviewing the data in the literature it is obvious that the differences in the concentrations of certain special elements in human hair for a various number of people are too large to be used as standards or deviations from standards for determining the trace-elemental composition of hair. New questions have arisen with the publication of non-compatible data. What is the distribution of elements on the donor's head area? What is the character of this distribution? Is the distribution function identical for all elements? Hair samples were taken from five points on the heads of six people. The hair samples were analysed using the method of X-ray fluorescence excited by synchrotron radiation (SRXRF), and the results were compared with those from a similar sample analysed using the method of total reflection X-ray fluorescence (TXRF). Elements which show a constant concentration all over the head are identified. [References: 10]
机译：在查阅文献中的数据时，很明显，对于许多人来说，人发中某些特殊元素的浓度差异太大，无法用作确定头发中微量元素组成的标准或偏离标准。 。不兼容数据的发布引起了新的问题。捐赠者头部区域的元素分布是什么？这种分布的特点是什么？所有元素的分布函数是否相同？头发样本取自六个人头上的五个点。使用由同步加速器辐射激发的X射线荧光（SRXRF）方法分析头发样品，并将结果与​​使用全反射X射线荧光（TXRF）方法分析的相似样品进行比较。确定在整个头部显示恒定浓度的元素。 [参考：10]

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