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首页> 外文期刊>Journal of forensic sciences. >Optimization of Sample Preparation processes of Bone Material for Raman Spectroscopy
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Optimization of Sample Preparation processes of Bone Material for Raman Spectroscopy

机译：拉曼光谱法的骨材料样品制备方法的优化

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摘要

Abstract Raman spectroscopy has recently been investigated for use in the calculation of postmortem interval from skeletal material. The fluorescence generated by samples, which affects the interpretation of Raman data, is a major limitation. This study compares the effectiveness of two sample preparation techniques, chemical bleaching and scraping, in the reduction of fluorescence from bone samples during testing with Raman spectroscopy. Visual assessment of Raman spectra obtained at 1064 nm excitation following the preparation protocols indicates an overall reduction in fluorescence. Results demonstrate that scraping is more effective at resolving fluorescence than chemical bleaching. The scraping of skeletonized remains prior to Raman analysis is a less destructive method and allows for the preservation of a bone sample in a state closest to its original form, which is beneficial in forensic investigations. It is recommended that bone scraping supersedes chemical bleaching as the preferred method for sample preparation prior to Raman spectroscopy.
机译：摘要最近已经研究了拉曼光谱，用于从骨骼材料的淘压间隔计算。样本产生的荧光，影响了拉曼数据的解释，是一个主要的限制。该研究比较了两种样品制备技术，化学漂白和刮削的有效性，在用拉曼光谱检测期间从骨样品的荧光减少的减少中。在制备方案后1064nm激发中获得的拉曼光谱的视觉评估表明荧光的总体降低。结果表明，刮擦在荧光方面比化学漂白更有效。在拉曼分析之前，骨架遗骸的缩短是一种较少的破坏性方法，并且允许在最接近其原始形式的状态下保存骨骼样品，这是有益的法医研究。建议将骨刮擦取代化学漂白作为拉曼光谱前样品制备的优选方法。

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