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采用化学定性和仪器分析相结合的手段对出土明代历书纸张上的硬结粘着物和深褐色斑进行定性，结果表明：使纸张发硬、结块的主要原因是由于大量的钙盐及钙的氧化物的存在。适当的络合剂的浸泡可使纸张软化易于揭取。通过对纸张上棕褐色斑的定性发现：组成色斑的成分很复杂，但主要成分为含酰胺基类的物质，根据对棺内具体情况的分析认为这些酰胺类物质更可能为蛋白质的降解产物如多肽等。适当浓度的氧化剂如过氧化氢、次氯酸钠或次溴酸钠都能使色斑降解，形成易溶于水的小分子和胺类而去除。
The chemical qualitative and instrumental analysis were used to characterize the hardened adhesive and dark brown spots on the calendar paper of the Ming Dynasty. The results showed that the main reason for making the paper stiff and agglomerated is due to a large amount of calcium salt and calcium oxidation The existence of things. Soaking with a suitable complexing agent softens the paper and is easily accessible. By qualitative analysis of the brown spots on the paper, the composition of the stain is complex, but the main components are amido-containing substances. According to the analysis of the specific conditions in the coffin, these amide substances are more likely to be protein degradation products Such as peptides and so on. Appropriate concentrations of oxidants such as hydrogen peroxide, sodium hypochlorite or sodium hypobromite can stain degradation, the formation of water-soluble small molecules and amines to remove.