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| Application of FT-IR Second Derivative Spectrum Characteristics in Nondestructive Fiber Identification of Ancient Chinese Paper |
| Received:March 20, 2023 Revised:May 08, 2023 |
| DOI：10.11981/j.issn.1000-6842.2024.04.134 |
| Key Words:Infrared Spectroscopy Second Derivative;Attenuated Total Reflection Fourier Transformed;Chinese ancient paper;non-destructive fiber identification |
| Author Name | Affiliation | | LYU Shuxian* | Peking University Library， Beijing， 100871 | | ZHANG Yanxia | Peking University Library， Beijing， 100871 | | WANG Xu | Peking University Library， Beijing， 100871 |
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| Abstract: |
| The species identification of fiber is an important work for the research and conservation of ancient paper. Exploring a non-destructive fiber identification method of Chinese ancient paper is of great significance to the research and conservation of Chinese ancient books， archives and paper-made cultural relics. In this study， Attenuated Total Reflection Fourier Transformed was used to achieve non-destructive fiber identification by analyzing 65 kinds of standard paper samples. FT-IR Second Derivative spectrum characteristics of each kind of paper were summarized respectively in the bands of 1500~1200 cm-1 and 1200~900 cm-1. Through crystallinity index calculated from FT-IR Second Derivative spectrum， a more detailed distinction of each kind of paper was achieved. The validity test results of 137 ancient paper samples showed that the fiber composition of ancient paper can be effectively identified by FT-IR Second Derivative spectrum analysis. For raw paper made from single kind of fiber， FT-IR Second Derivative spectrum can reach a level comparable to microscopic analysis. For coated paper， it can identify the fiber accurately by FT-IR Second Derivative spectrum without spectral peaks interference of additives. For mixed paper， the categories of components in mixed fibers can also be identified through FT-IR Second Derivative spectrum. Therefore， FT-IR Second Derivative spectrum analysis has a great application prospect in the nondestructive identification for ancient Chinese paper fibers. |
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