鞋底材料的傅立叶变换红外光谱类型分析  

Analysis of Sole Materials by Fourier Transform Infrared Spectroscopy

作　　者：吴清华[1] 张振宇[1] 

机构地区：[1]中国刑事警察学院,辽宁沈阳110035

出　　处：《分析测试技术与仪器》2017年第1期24-28,共5页Analysis and Testing Technology and Instruments

摘　　要：利用傅立叶变换红外光谱技术对收集的29种皮鞋类黑色鞋底样品进行了测定分析,其中24种样品来自不同品牌或型号,5种样品来自同一品牌同一厂家同一批次.从红外光谱图中可以看出,依据红外光谱图中特征峰的峰数、峰位、峰形可将29个鞋底样品分为3大类.同一大类的部分鞋底样品有着相似的红外光谱特征,但在相对峰高比和指纹区中一些弱吸收峰上仍然存在明显差异.同一品牌同一厂家同一批次的鞋底样品红外光谱特征基本一致.这表明傅立叶变换红外光谱法是鉴别鞋底材料的有效方法,可以为案件现场遗留的各种鞋底材料残渣及其擦痕提供种属鉴别及比对分析.To study the feasibility of fourier transform infrared spectroscopy（FTIR） in the identification of different brands of sole materials,29 black sole materials samples of leather shoes were collected and analyzed by FTIR. Among them,24 samples were from different brands or types and 5 samples were from the same brand with the same batch of the same manufacturer. According to the characteristics of the band numbers, band positions, band shapes in infrared spectroscopy, 29 samples can be divided into 3 categories; the sole material samples of the same kind had similar IR fe atures ,but also had many difference in the relative band height ratios and some weak absorption band in fingerprint region. In addition,the infrared spectral characteristics are basically the same in sole material samples from the same brand with the same batch of the same manufacturer, denoting that FTIR is an effective method for the determination of sole materials and can provide the type identification and comparative analysis for various kinds of sole materials and the scratches that left from the scene.

关 键 词：傅立叶变换红外光谱 鞋底材料 不同品牌 

分 类 号：O657.3[理学—分析化学]