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整合减弱总反射率-里埃变换红外光谱和多探测器计算机断层扫描来分析热引起的骨变化
Tamara Leskovar1, Fabio Cavalli2, Lea Legan3,4
1Centre for Interdisciplinary Research in Archaeology, Department of Archaeology, Faculty of Arts, University of Ljubljana, Zavetiška 5, 1000 Ljubljana, Slovenia.
Materials (Basel, Switzerland)
|February 26, 2025
概括
调查烧伤的骨头需要了解热引起的变化. 结合减弱总反射率-里埃变换红外光谱与多探测器计算机断层扫描,揭示了骨结晶度和密度的复杂变化.
科学领域:
- 法医人类学 法医人类学
- 考古学科学 考古学科学
- 材料科学 材料科学 材料科学
背景情况:
- 烧毁的人类和动物的骨遗骸在考古学和法医学上很常见.
- 暴露于热量会显著改变骨的物理和化学特性,提供语音信息.
研究的目的:
- 为了研究脱肉牛皮层骨中的热变化.
- 为了结合减弱总反射率-里埃变换红外光谱 (ATR-FTIR) 和多探测器计算机断层扫描 (CT) 密度测量.
- 评估CT在分析热损伤骨中的非破坏性潜力.
主要方法:
- 牛皮层骨样本被暴露在受控温度下,持续时间不同.
- 使用减弱总反射率-里埃变换红外光谱 (ATR-FTIR) 来分析化学变化.
- 多探测器计算机断层扫描 (CT) 用于非破坏性密度测量.
主要成果:
- 暴露于热量导致骨有机和无机成分发生复杂的变化,影响结晶性和密度.
- 较低的温度主要影响有机物,而较高的温度改变了矿物晶格.
- 高温诱导相变,如β-三酸到α-三酸,影响骨特性.
结论:
- 多探测器CT密度测量为FTIR光谱学提供了补充数据,用于分析烧伤的骨.
- 电脑图谱分析提供了宝贵的非破坏性见解,特别是在现场遗骸中.
- 将CT与其他技术相结合对于全面解释骨热损伤至关重要.
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