粘贴带证据的序列处理:使用ATR-FTIR光谱的潜伏指纹的开发和随后的表征
Chongtham Nimi1, Nisha Rani1, Aditi Bagga1
1Department of Forensic Science, Punjabi University, Patiala, Punjab, India.
Journal of forensic sciences
|September 5, 2025
概括
现在法医科学家可以在粘贴带上发现隐藏的指纹, 这两种方法都保留了磁带特征,用于随后的ATR-FTIR光谱分析,蒸发显示出更好的化学预测准确度.
科学领域:
- 法医科学
- 分析化学
- 光谱学
背景情况:
- 在各种刑事案件中, 带是重要的法医证据.
- 磁带上的指纹检查通常优先于磁带的特征.
- 开发与磁带分析相容的有效指纹方法至关重要.
研究的目的:
- 评估粘贴带上的指纹开发技术.
- 通过ATR-FTIR光谱来评估这些技术对磁带特性的影响.
- 研究指纹发育对化学测试带分析的影响.
主要方法:
- 在各种粘贴带上测试了紫色和蒸发的指纹.
- 使用减弱总反射率-里埃变换红外光谱 (ATR-FTIR) 分析开发的磁带.
- 在指纹开发后进行化学预测准确性的初步研究.
主要成果:
- 根蒂安紫色和蒸发成功地产生了良好的清晰和对比的指纹.
- 这两种方法都与ATR-FTIR光谱相兼容.
- 雾对ATR-FTIR光谱的影响很小,而紫则带来了较小的峰值.
- 在化学测量中,蒸发能更准确地预测带的特性.
结论:
- 紫色和蒸是粘贴带上指纹形成的可行方法.
- 这些技术允许对磁带进行ATR-FTIR光谱分析.
- 在粘贴带分析中保持化学测量预测准确性,最好采用雾化.
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