干旱区生态环境知识资源中心(Arid): Chemical alteration patterns of ancient Egyptian papyri studied by Pyrolysis-GC/MS with in situ silylation

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DOI	10.1016/j.jaap.2020.104967
	Chemical alteration patterns of ancient Egyptian papyri studied by Pyrolysis-GC/MS with in situ silylation
	Lucejko, J. J.; Colombini, M. P.; Ribechini, E.
通讯作者	Lucejko, JJ (corresponding author), Univ Pisa, Dept Chem & Ind Chem, Via G Moruzzi 13, I-56124 Pisa, Italy.
来源期刊	JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
ISSN	0165-2370
EISSN	1873-250X
出版年	2020
卷号	152
英文摘要	Analytical pyrolysis-gas chromatography coupled with mass spectrometry with in situ silylation using hexamethyldisilazane (Py(HMDS)-GC/MS) was employed to study a set of ancient Egyptian papyri. The aim was to investigate their chemical alteration patterns and to obtain information regarding the degradation pathways affecting them. In ancient Egypt, papyrus was widely exploited and its most important use was as a writing surface, created from strips of the pith found inside the stalk laid down in layers and dried under pressure. These strips were formed into rolls that were left intact or cut into sheets. From a chemical point of view, papyrus mainly consists of three biopolymers: cellulose, hemicellulose and lignin. Biological degradation due to fungi, bacteria or insects is the main cause of papyri decay in archaeological findings. However, thanks to the dry climate of the desert, the remains of many papyri have been found and recovered in Egypt. Py-GC/MS was used to identify roughly 90 compounds in the pyrograms of the various papyri. In terms of the main pyrolysis products derived from polysaccharides and lignin, compositional differences were detected between the archaeological papyri of several historical periods and sound modern papyrus sheets and plants. These chemical differences were derived from the modifications - such as depolymerisation, oxidation and depletion undergone by both the polysaccharides and lignin.
英文关键词	Egyptian papyri Analytical pyrolysis Trimethylsilylation Degradation pathway Depolymerisation Oxidation
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000604167000001
WOS关键词	WOOD DEGRADATION ; UV-LIGHT ; PY-GC/MS ; LIGNIN ; DETERIORATION ; IRRADIATION ; MICRO ; PAPER
WOS类目	Chemistry, Analytical ; Energy & Fuels ; Engineering, Chemical
WOS研究方向	Chemistry ; Energy & Fuels ; Engineering
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/348965
作者单位	[Lucejko, J. J.; Colombini, M. P.; Ribechini, E.] Univ Pisa, Dept Chem & Ind Chem, Via G Moruzzi 13, I-56124 Pisa, Italy
推荐引用方式 GB/T 7714	Lucejko, J. J.,Colombini, M. P.,Ribechini, E.. Chemical alteration patterns of ancient Egyptian papyri studied by Pyrolysis-GC/MS with in situ silylation[J],2020,152.
APA	Lucejko, J. J.,Colombini, M. P.,&Ribechini, E..(2020).Chemical alteration patterns of ancient Egyptian papyri studied by Pyrolysis-GC/MS with in situ silylation.JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS,152.
MLA	Lucejko, J. J.,et al."Chemical alteration patterns of ancient Egyptian papyri studied by Pyrolysis-GC/MS with in situ silylation".JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS 152(2020).