Determination of the Sequencing of Sealing and Writing with Fourier IR Microscopic Chemical Image System
YANG Sheng-jun1, ZOU Duo-sheng1, SHI Lin1,WANG Yan-jun1, XIE Jing-lan1,WANG Guo-qiang2
1. Material Evidence Identification Center, Security Bureau of Sichuan Province, Chengdu 610041, China 2. Shenyang Office, Perkin-Elmer Co., Ltd. (Shanghai), Shenyang 110013, China
Abstract：Using Fourier-transform IR microscopic chemical image system, combined with surface scan and reflection mode, noninvasive fast identification of the sequencing of writing and sealing was carried out. Results indicate that sealing prior to writing leads to evident characteristic peaks of the ink in the IR spectra, while writing prior to sealing results in clear characteristic peaks of the stamp-pad ink in the IR spectra. The method features speediness, exactness, impersonality, and non-invasion to the sample.
Key words：Fourier-transform IR microscopic chemical image system;Surface scan;Reflection mode;Characteristic peaks
杨胜军1,邹多生1,石琳1,王燕军1, 谢敬兰1,王国强2 . 利用傅里叶红外显微化学图像系统鉴定书写与盖章的先后顺序[J]. 光谱学与光谱分析, 2006, 26(08): 1460-1463.
YANG Sheng-jun1, ZOU Duo-sheng1, SHI Lin1,WANG Yan-jun1, XIE Jing-lan1,WANG Guo-qiang2 . Determination of the Sequencing of Sealing and Writing with Fourier IR Microscopic Chemical Image System . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(08): 1460-1463.
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