Trunova Valentina, Parshina Natalia, Kondratyev Vladimir
Institute of Inorganic Chemistry, SB RAS, Novosibirsk 630090, Russia.
J Synchrotron Radiat. 2003 Sep 1;10(Pt 5):371-5. doi: 10.1107/s0909049503009154. Epub 2003 Aug 28.
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.
在查阅文献中的数据时，很明显，不同人群头发中某些特定元素的浓度差异太大，无法用作确定头发微量元素组成的标准或偏离标准的依据。随着不相容数据的公布，出现了新的问题。元素在供体头部区域的分布是怎样的？这种分布的特征是什么？所有元素的分布函数是否相同？从六个人头部的五个点采集了头发样本。使用同步辐射激发的X射线荧光法（SRXRF）对头发样本进行分析，并将结果与使用全反射X射线荧光法（TXRF）分析的类似样本的结果进行比较。识别出在整个头部浓度恒定的元素。
