论文部分内容阅读
为了实现羊皮胶、羊骨胶的气相色谱分析鉴别,进而更加准确地鉴定彩绘文物胶料种类,实验利用气相色谱质谱联用技术分析了羊皮胶、羊骨胶、猪皮胶、猪骨胶、鸡蛋、奶类等样品的氨基酸组成。发现鸡蛋含有较高的天冬氨酸和较低的脯氨酸,奶类中谷氨酸含量较高而丙氨酸含量较低;哺乳动物皮骨胶具有特有的羟脯氨酸和较多的脯氨酸等特点。同时在哺乳动物皮骨胶中,羊皮胶和羊骨胶的蛋氨酸和谷氨酸含量较猪皮胶、猪骨胶低,但这一差别在常用数据处理方法——主成分分析中并不显著。得出了文物样品气质联用分析中羊、猪胶料间细节信息的鉴定应将主成分分析结果与特定氨基酸组成综合考虑的结论。
In order to realize the identification of sheepskin glue and sheep bone glue by gas chromatography and identify the types of colored cultural relics more accurately, the effects of sheepskin glue, sheep glue, pig glue, pork glue, egg, milk were analyzed by gas chromatography-mass spectrometry Class and other samples of amino acid composition. Found that eggs contain higher aspartic acid and lower proline, milk, glutamic acid content is higher and alanine content lower; mammalian skin glue has a unique hydroxyproline and more preserved Amino acid and other characteristics. At the same time, the content of methionine and glutamic acid in sheep skin glue and sheep glue is lower than that in pig skin glue and pig glue in mammalian skin glue, but this difference is not significant in the common data processing method - principal component analysis. The conclusion is drawn that the principal component analysis results and the specific amino acid composition should be comprehensively considered in the identification of details between sheep and pigs in the cultural relics sample temperament combined analysis.