延安时期红色文献的红外光谱无损检测研究  

Non-Destructive Analysis of Yan’an Red Literature by FTIR Spectroscopy

作　　者：张旭 闫玥儿 张春梅[2] 杨光辉[1] 唐颐[3] ZHANG Xu;YAN Yue-er;ZHANG Chun-mei;YANG Guang-hui;TANG Yi(Institute for Preservation and Conservation of Chinese Ancient Books,Fudan University Library,Fudan University,Shanghai 200433,China;Department of Chinese Rare Books Collection and Digitization,Fudan University Library,Fudan University,Shanghai 200433,China;Department of Chemistry,Fudan University,Shanghai 200433,China)

机构地区：[1]复旦大学图书馆中华古籍保护研究院,上海200433 [2]复旦大学图书馆特藏与数字化部,上海200433 [3]复旦大学化学系,上海200433

出　　处：《光谱学与光谱分析》2022年第10期3097-3102,共6页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金项目(21805042);上海市浦江人才计划项目(2020PJC003);文化和旅游部文化行业标准化研究项目(WH/Y08-2018)资助。

摘　　要：延安是中国共产党领导革命的中心和战略总后方,是革命的红色摇篮。延安时期出版了大量具有历史、文化以及教育意义的红色文献,这些红色文献记载了中国共产党波澜壮阔的发展历程,也反映了延安时期不断发展的科技生产水平与独特的制浆造纸工艺,具有重要的研究价值。然而,延安时期出版的红色文献虽距今不到百年时间,但其保存现状不容乐观,普遍存在纸张老化、焦脆易碎等问题,大量文献急需科学检测与修复保护,以延长其保存寿命。目前,针对延安时期红色文献的检测研究仍存在较大空白。考虑到红色文献的珍贵性与特殊性,应当尽可能选择无损检测方法对其分析检测。基于衰减全反射-傅里叶变换红外光谱法(ATR-FTIR),以木素1510 cm^(-1)处特征峰与纤维素1030 cm^(-1)处特征峰的强度作为定量依据,建立了造纸原料与红色文献纸张中木素相对含量的无损检测方法。通过检测不同碱强度与碱浓度处理后的构皮、苦竹与杨木的木素含量,考察了制浆过程中碱处理条件对造纸原料脱木素程度的影响,同时体现了红外光谱法测定木素相对含量的普适性。以复旦大学图书馆藏的76册延安时期红色文献为研究对象,分析了红色文献的纸张木素含量与纸张pH值以及纸张氧化度的相互关系。结果表明,木素相对含量高于25%的红色文献,其纸张pH集中在3~4之间且纸张氧化度较高,文献整体保存状况堪忧;而木素相对含量低于25%的红色文献,其纸张氧化度与酸度较低,文献整体保存情况较好。以上结果验证了红外光谱无损检测法用于延安时期红色文献木素含量分析的可行性,并结合纸张氧化度与酸度数据提出了纸张木素含量的合适范围,为制浆造纸中植物原料的脱木素过程提供参考。拓展了红外光谱法在红色文献无损检测中的应用范围,以期为延安时期红色文献的修复与保�Yan’an was the revolution center and strategic backside of the Communist Party of China and the cradle of revolution.Large numbers of red kinds of literature with historical,cultural,and educational significance were published in the Yan’an period,which recorded the grand development of the Communist Party of China and reflected the continuous improvement of scientific and technological productive force as well as the unique pulping and paper making process in that period.Thus,the research value of Yan’an red kinds of literature is of great importance.However,although these red kinds of literature have a history of fewer than 100 years,their preservation situations are not optimistic,and problems such as aging and embrittling of paper are widespread.These books are in urgent demand of scientific detection and preservation to prolong their live performance.Research on the detecting and analyzing of Yan’an red literature is still blank.Non-destructive testing methods should have opted as far as possible.Based on Attenuated Total Reflection-Fourier Transform Infrared Spectroscopy(ATR-FTIR),the intensity of the characteristic peak at 1510 cm^(-1)of lignin and 1030 cm^(-1)of cellulose was used as the quantitative foundation to establish the non-destructive testing method of the relative lignin content in paper raw materials and red literature paper.The effect of alkali strength and concentration on the degree of delignification during the pulping process was investigated by examining the lignin content of paper mulberry bark,bitter bamboo and poplar.The generality of FTIR method for determining the relative lignin content was also demonstrated.The relationship between the paper lignin content and the paper pH value or the paper oxidation degree was studied for Yan’an red kinds of literature collected in Fudan University Library.The results showed that red kinds of literature with relative lignin content higher than 25%had a higher paper oxidation degree and acidity(pH 3~4),and the overall preservation situat

关 键 词：延安时期 红色文献 无损检测 红外光谱 木素含量 

分 类 号：O657.3[理学—分析化学]