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| 应用FTIR光谱技术推断死亡时间 | |
| 引用本文： | 黄平,王世伟,白杰,柯咏,樊拴良,张平,方杰,王振原. 应用FTIR光谱技术推断死亡时间[J]. 中国法医学杂志, 2011, 26(2): 104-109 |
| 作者姓名： | 黄平 王世伟 白杰 柯咏 樊拴良 张平 方杰 王振原 |
| 作者单位： | 1. 西安交通大学医学院法医学系,陕西,西安,710061;司法部司法鉴定科学技术研究所,上海,200063 2. 西安市公安局新城分局,陕西,西安,710004 3. 绥德县公安局,陕西,愉林,718000 4. 西安交通大学医学院法医学系,陕西,西安,710061 |
| 基金项目： | 国家自然科学基金资助项目(81072509,30471935); 上海市自然科学基金项目(09ZR1432900) |
| 摘 要： | 目的 应用傅立叶变换红外(FTIR)光谱技术分析大鼠死后组织、人体离体组织随死亡时间推移的化学降解过程,为死亡时间推断的研究提供新的途径与方法.方法 大鼠断颈处死后置于4℃、20℃、30℃环境,在不同死亡时间点提取大鼠不同组织;收集有同样死亡时间的人尸体组织,离体取材,并运用FFIR光谱仪测定不同化学基团随死后和离体后... |
| 关 键 词： | 法医病理学 死亡时间 傅立叶变换 红外光谱 曲线拟合 |
To estimate the postmortem interval using FTIR spectroscopy |
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| HUANG Ping,WANG Shiwei,BAI Jie,KE Yong,FAN Shuanliang,ZHANG Ping,FANG Jie,WANG Zhenyuan. To estimate the postmortem interval using FTIR spectroscopy[J]. Chinese Journal of Forensic Medicine, 2011, 26(2): 104-109 | |
| Authors: | HUANG Ping WANG Shiwei BAI Jie KE Yong FAN Shuanliang ZHANG Ping FANG Jie WANG Zhenyuan |
| Affiliation: | 1/1.Department of Forensic Science,Xian Jiaotong University,Xian 710061,China;2.Institue of Foresic Science,Ministry of Justice,Xian 200063,China;3.Xian Xincheng Public Security Bureau,Xian 710004,China;4.Suide Public Security Bureau,Shanxi Yulin 718000,China) |
| Abstract: | Objective The rat and human tissues were analyzed using FTIR spectroscopy technique after death and the study can provide a new method to estimate postmortem interval.Methods The rats were sacrificed by cervical dislocation and the cadavers were kept at 4、20、30℃ in a controlled environment chamber.The tissues were sub-sampled from different organs at different time points postmortem.The human tissues were taken at intervals after death.The spectra were collected to explore the changes of different chemical functions.Results The absorbance bands position of rat and human showed no obvious changes.The absorbance band intensity showed four change ways:increase,decrease,stable and instability.The different absorbance band ratios showed similar changes tendency.Conclusion FTIR can provide a new method to estimate the postmortem interval. |
| Keywords: | forensic pathology postmortem interval fourier transformation infrared spectra curve fitting |
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