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首页> 外文期刊>International journal of PIXE >THE VOLATILE CHARACTER OF TRACE ELEMENTS IN BIOMEDICAL SAMPLES AND GUM TISSUE ANALYSES
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THE VOLATILE CHARACTER OF TRACE ELEMENTS IN BIOMEDICAL SAMPLES AND GUM TISSUE ANALYSES

机译:生物医学样品中微量元素的挥发性特征及牙龈组织分析

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摘要

During PIXE analyses of biomedical samples often great damage of the sample occurs. This damage is always combined with mass loss and strong alterations of the initial structure. The loss of mass can be explained by the loss of volatile elements, mainly the major elements Hydrogen, Carbon, Nitrogen, and Oxygen. This results in a charge dependency of the element contents and has to be corrected during the data reduction. Here we describe measurements of different samples that monitor the mass loss and the charge dependency of the trace element concentrations. A model was developed to give the correct concentrations after the PIXE analyses. Additionally first results or PIXE analyses of gum tissue are reported. They give direct hints for amalgam residues inside the tissue in pathologically altered areas.
机译:在生物医学样品的PIXE分析过程中,经常会造成样品的巨大损坏。这种损坏总是伴随着质量损失和初始结构的强烈变化。质量的损失可以通过挥发性元素的损失来解释,挥发性元素主要是氢,碳,氮和氧的主要元素。这导致元素含量的电荷依赖性,并且必须在数据缩减期间进行校正。在这里,我们描述了监测样品质量损失和痕量元素浓度的电荷依赖性的不同样品的测量。在PIXE分析之后,开发了一个模型以给出正确的浓度。此外,还报告了牙龈组织的初步结果或PIXE分析。它们直接提示病理改变区域组织内的汞合金残留。

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