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SPECTROSCOPY AND SPECTRAL ANALYSIS  2020, Vol. 40 Issue (04): 1156-1161    DOI: 10.3964/j.issn.1000-0593(2020)04-1156-06
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Identification of the Types and Writing Time of Black Signature Pen Handwriting Based on Raman Spectroscopy
WAN Jing-wei1, 2, CUI Sheng-feng1, 2, CHEN Lei3, MA Xue-bing4
1. Center for Physical and Chemical Evidence Examination, Department of Criminal Science and Technology, Railway Police College, Zhengzhou 450053, China
2. Institute of Environmental and Ecological Safety Technology, Institute of Public Safety Research, Zhengzhou University, Zhengzhou 450001, China
3. Department of Pharmacy, Henan Medical College, Zhengzhou 451191, China
4. Key Laboratory of Applied Chemistry of Chongqing Municipality, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China