故宫太和殿护板灰有机组分的红外光谱及热裂解-气相色谱/质谱分析  

FTIR and Py-GC/MS analysis of organic materials used in the guard board mortar of Taihe Dian,the Forbidden City

作　　者：王娜 张学芹[1] 雷勇[1] 谷岸[1] 马越[1] WANG Na;ZHANG Xue-qin;LEI Yong;GU An;MA Yue(The Palace Museum,Beijing 100009,China)

机构地区：[1]故宫博物院,北京100009

出　　处：《文物保护与考古科学》2018年第2期121-126,共6页Sciences of Conservation and Archaeology

摘　　要：为研究太和殿护板灰中所含有机组分,通过傅里叶变换红外光谱(FTIR)及热裂解-气相色谱/质谱联用仪(Py-GC/MS)对太和殿上层护板灰、太和殿上层西南角护板灰进行分析检测。FTIR分析结果表明两个护板灰样品含有碳酸盐及油脂或虫胶漆类有机物,Py-GC/MS分析进一步确定两个样品所含有机物是植物油,且可能是生桐油与十字花科植物油脂的混合物;此外,在两个样品中检测到的雪松醇应该是太和殿所用杉木望板的挥发组分,而太和殿上层护板灰中则可能含有淀粉。研究结果有助于科学还原太和殿古建护板灰的传统制作方法。Fourier transform infrared spectroscopy(FTIR)and pyrolysis gas chromatography/mass spectrometry(Py-GC/MS)were applied to identify the organic materials used in the guard board mortar of Taihe Dian(Hall of Supreme Harmony)in the Forbidden City.Two guard board mortar samples,collected respectively from the upper layer and the southwest corner of the upper layer of Taihe Dian,were analyzed.FTIR results showed that in the two samples,the inorganic material used was carbonate,and that the organic materials might be lipids or shellac.Py-GC/MS analysis further confirmed that there were vegetable oils in the two samples,perhaps a mixture of raw tung oil and oil from cruciferous plants.Cedrol detected in both samples could be the volatile component of the cedar wood roof boarding of Taihe Dian.In addition,there might also be starch in the sample of upper layer guard board mortar.The present work will contribute to the scientific research and restoration of the traditional guard board mortar used in Taihe Dian.

关 键 词：太和殿护板灰 热裂解-气相色谱/质谱 生桐油 十字花科植物油脂 淀粉 

分 类 号：K879.4[历史地理—考古学及博物馆学]