琥珀、柯巴树脂、松香的光谱学特征  

Spectroscopy Characteristics of Amber,Copal Resin and Rosin

作　　者：饶之帆[1] 谢劼[1] 董鹍[1] 

机构地区：[1]昆明理工大学分析测试研究中心,昆明市学府路304号650093

出　　处：《光谱实验室》2013年第2期720-724,共5页Chinese Journal of Spectroscopy Laboratory

基　　金：云南省科技条件平台建设计划项目(2010DH025)

摘　　要：应用常规测试手段、紫外可见光谱、红外光谱和拉曼光谱分别对天然琥珀、柯巴树脂、松香进行了测试。研究结果表明:柯巴树脂的拉曼光谱出现的932、964cm^(-1)和989cm^(-1) 3处及1179cm^(-1)、1226cm^(-1)和1266cm^(-1) 3处的特征振动峰,是首次运用拉曼光谱技术证实柯巴树脂中萜烯类化合物存在的有力证据,而这些特征峰在天然琥珀的拉曼光谱中没有出现;松香的拉曼光谱存在1589cm^(-1)的特征振动峰,是由其内部的不饱和树脂酸中的共轭双键所致,这正是松香和天然琥珀的特征区别依据,从而分别解决了目前琥珀的天然树脂类高仿品的鉴别难点。因此应用拉曼光谱技术对有机宝石琥珀及其天然树脂类高仿品进行鉴定和分析具有较大的优势和便利。Amber, copal resin and rosin were tested by common testing technology, UV-Vis spectrum, Infrared spectrum and Raman spectrum. The results showed that vibration characteristic peaks neared position of 932,964cm^-1 and 989cm^-1 and position of 1179,1226cm^-1 and 1266cm^-1 in Raman spectra of copal resin,which was the strong evidence of the existence of terpenes compounds in copal resin by Raman spectra, but the characteristic peaks did not appear in the Raman spectra of natural amber. Iia the Raman spectra of rosin, the vibration characteristic peak,which was caused by conjugate double bond of internal unsaturated resin acid,was at position of 1589cm^-1. According to the fact whether there is characteristic peak in the spectra, natural amber and high imitation of natural resin can be distinguished. Therefore, there is advantageous and convenient to identify and analyze organic amber gemstone and high imitation of natural resin by using Raman spectroscopy.

关 键 词：琥珀 柯巴树脂 松香 紫外可见光谱 红外光谱 拉曼光谱 

分 类 号：O657.37[理学—分析化学] O657.33[理学—化学]