| 出土纸张上硬结物和深褐色斑的定性分析 |
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| 引用本文： | 罗曦芸.出土纸张上硬结物和深褐色斑的定性分析[J].实验室研究与探索,1999(1). |
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| 作者姓名： | 罗曦芸 |
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| 作者单位： | 上海博物馆文物保护与考古科学实验室,上海市,200231 |
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| 摘 要： | 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。
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| 关 键 词： | 纸张 色斑 钙盐 红外光谱 EDTA |
| 修稿时间： | 1998-06-18 |
Qualitative Analysis of Hard Pieces and Brown Coloured Spot on Ancient Paper |
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| Luo Xiyun.Qualitative Analysis of Hard Pieces and Brown Coloured Spot on Ancient Paper[J].Laboratory Research and Exploration,1999(1). |
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| Authors: | Luo Xiyun |
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| Abstract: | This article studied the hard pieces
and the brown coloured spot on the almanac paper of the Ming Dynasty. The results show
that the presence of calcium salt and the oxide of calcium is the main reason for making
the paper harden and that the existence of amide group formed the brown coloured spot on
the paper. It is also indicated in this article that some oxidizer like hydrogen peroxide,
sodium hypochlorite and hypobromite can remove the spot by degrading the amide group. |
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| Keywords: | EDTA |
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