常用纸张填料的光谱分析

Spectral analysis of common paper fillers

纸张物证是各类案件现场中常见的物证之一。纸张在生产加工过程中常会加入一些填料,用以降低成本、改善纸张性能。通过对纸张填料的检验,可以实现对纸张的鉴定。检验纸张常用的光谱法主要有红外光谱法、拉曼光谱法和X射线荧光光谱法。光谱法具有简便快捷、无损样品、无需特殊的前处理等优点,相较于色谱法等其他检验方法具有明显的优势。

Paper material evidence is one of the common material evidence at the scene of various cases.In the production and processing of paper,some fillers are often added to reduce costs and improve paper performance.Through the inspection of paper filler,the identification of paper material can be realized.The commonly used spectroscopic methods for testing paper are infrared spectroscopy,Raman spectroscopy and X-ray f luorescence spectroscopy.The spectral method has many advantages,such as simple,fast,non-destructive to samples,no special pretreatment,etc.It has more advantages over other methods such as chromatography.