Department of Chemistry, Pepperdine University, Malibu, CA 90263, USA.
Anal Bioanal Chem. 2011 Apr;399(10):3589-600. doi: 10.1007/s00216-011-4680-5. Epub 2011 Jan 28.
Volatile organic compounds emitted from a several decade series of bound periodicals (1859-1939) printed on ground wood paper, as well as historical books dating from the 1500s to early 1800s made from cotton/linen rag, were studied using an improved headspace SPME/GC-MS method. The headspace over the naturally aging books, stored upright in glass chambers, was monitored over a 24-h period, enabling the identification of a wide range of organic compounds emanating from the whole of the book. The detection of particular straight chain aldehydes, as well as characteristic alcohols, alkenes and ketones is correlated with oxidative degradation of the C(18) fatty acid constituency of paper. The relative importance of hydrolytic and oxidative chemistry involved in paper aging in books published between 1560 and 1939 was examined by comparing the relative abundances of furfural (FUR) a known cellulose hydrolysis product, and straight chain aldehydes (SCA) produced from the oxidation of fatty acids in paper. The relative abundance of furfural is shown to increase across the 379-year publication time span. A comparison of relative SCA peak areas across the series of books examined reveals that SCA emission is more important in the cotton/linen rag books than in the ground wood books.
使用改进的顶空固相微萃取/气相色谱-质谱法研究了在几十年间（1859 年至 1939 年）使用磨木浆纸印刷的装订期刊以及 16 世纪至 19 世纪早期的棉/亚麻碎布制成的历史书籍中释放的挥发性有机化合物。监测了直立存放在玻璃室中的自然老化书籍在 24 小时内的顶空，从而能够识别出从整本书中散发出来的各种有机化合物。特定直链醛以及特征醇、烯烃和酮的检测与纸张中 C（18）脂肪酸成分的氧化降解有关。通过比较糠醛（FUR）（一种已知的纤维素水解产物）和纸张中脂肪酸氧化生成的直链醛（SCA）的相对丰度，研究了 1560 年至 1939 年出版的书籍中纸老化过程中涉及的水解和氧化化学的相对重要性。糠醛的相对丰度在 379 年的出版时间跨度内增加。对所研究的一系列书籍中相对 SCA 峰面积的比较表明，SCA 的排放对棉/亚麻碎布书比磨木浆书更为重要。
