Probing calcium and sulfur distribution and pattern in hairs using micro-proton induced X-ray emission (MPIXE)

被引：0
|
作者：
John H.T. LUONG [1 ]
机构：
[1] School of Chemical and Biomedical Engineering Nanyang Technological University Singapore Biotechnology Research Institute National Research Council of Canada Montreal Quebec Canada H4P 2R2
来源：
ChineseScienceBulletin | 2007年 / 21期
基金：
中国国家自然科学基金;
关键词：
proton-induced X-ray emission (PIXE); Ca; S; hair;
D O I：
暂无
中图分类号：
R816 [各部位及各科疾病的X线诊断与疗法];
学科分类号：
摘要：
More than 20 hair strands obtained from several people are analyzed by non-invasive micro-proton induced X-ray emission (PIXE) for probing calcium and sulfur distribution and pattern. The sulfur con- tent in woman’s hair along the longitudinal axis shows a monthly rhythm whereas the level of Ca is much higher in the medulla core and exhibits a daily rhythm both in male and female hair. The Ca content gradually decreases from the tip to the root position in the shedding process and more Ca can be found in black hair compared to white hair.
引用
收藏
页码：2909 / 2912
页数：4
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