文物保护与考古科学2024，Vol.36Issue(6)：103-110,8.DOI:10.16334/j.cnki.cn31-1652/k.20230302846
基于气相色谱-质谱联用法研究考古土壤老化对文物中蛋白胶结材料鉴定的影响
Influence of archaeological soil burial on GC-MS identification of proteinaceous binders
摘要
Abstract
The aging of proteinaceous binders buried under soil environment may cause a change of amino acid content,thus affecting their GC-MS identification.In order to improve the accuracy of this method,the author studied how the amino acids of the commonly used binders(collagen,egg and milk)changed after aging in archaeological soil,using GC-MS box plot and principle component analysis(PCA)graph.The GC-MS results show that the levels of Pro,Asp and Glu increased while that of Ser decreased.Gly and Hyp in pig glue and Ile,Phe in egg and milk decreased.These changes caused variations in the box plot and PCA graph,but they were identifiable.Based on the above research,animal glue,and a mixture of animal glue and egg were identified in the painting layers of murals and pottery of the Tang tomb at Guodu,Xi'an.This study has improved the accuracy of GC-MS identification of proteinaceous binders and could provide a scientific basis for exploring the degradation mechanism and selecting proper conservation materials.关键词
彩绘文物/考古土壤老化/蛋白胶料/GC-MS/鉴定Key words
Polychrome cultural relics/Archaeological soil burial/Proteinaceous binder/GC-MS/Identification分类
社会科学引用本文复制引用
马珍珍..基于气相色谱-质谱联用法研究考古土壤老化对文物中蛋白胶结材料鉴定的影响[J].文物保护与考古科学,2024,36(6):103-110,8.基金项目
国家自然科学基金资助(52072228),国家重点研发计划资助(2022YFF0903805),四川省科技计划项目资助(2022YFS0558) （52072228）
