美国通用电气公司宝石级合成翡翠的振动谱学研究  

Study on the Vibrational Spectra Characterization of Synthetic Jadeite Jade Made by General Electric Company

作　　者：曹姝旻[1] 亓利剑[2] 郭清宏[3] 钟增球[1] 丘志力[4] 李志刚[3] 

机构地区：[1]中国地质大学地学院,湖北武汉430074 [2]同济大学珠宝学院(在筹),上海200092 [3]广东省珠宝玉石及贵金属检测中心 [4]中山大学地球科学系,广东广州510275

出　　处：《光谱学与光谱分析》2008年第4期847-851,共5页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金项目(40673039)资助

摘　　要：对近来面市的美国通用电气公司的宝石级合成翡翠,使用傅里叶红外光谱仪、激光拉曼光谱仪等谱学分析测试仪器进行测试,研究其振动光谱,试图从振动谱学的角度分析研究这种合成翡翠的特征,并比较它与天然翡翠的异同。研究结果表明:在红外光谱方面:美国通用电气公司宝石级合成翡翠的指纹区与天然翡翠的基本相同;而在基团频率区,则有明显的不同:在3400～3700cm-1范围内显示一组由OH的伸缩振动导致的特征吸收谱带:3375,3471和3614cm-1。揭示了合成翡翠中含有一定数量的羟基。在拉曼光谱方面,一组376,700,989和1039cm-1的尖锐吸收峰一方面显示了和天然翡翠的拉曼特征一致性,另一方面也显示其具有完好的结晶形态,红外光谱和拉曼光谱均显示了样品中重质量的阳离子的缺乏。The object of the present study is the synthetic jadeite jade produced by American General Electric Corporation. Fourier transform infrared spectroscopy（FTIR） and Laser Raman spectroscopy were used to test its spectral properties in order to examine the feature of this kind of synthetic jadeite jade by vibrational spectroscopy and to figure out the mark for discriminate synthetic jadeite jade from natural jadeite jade. The study shows that GE synthetic jadeite jade is identical with natural jadeite jade in the main on fingerprint region in FTIR; There are clearly differences in the 2 000 -4 000 cm-1 functional region in FTIR： a group of frequencies at 3 375, 3 471 and 3 614 cm-1 indicate vibration absorption of O-H. GE synthetic jadeite jade has prov- en consistent with natural jadeite jade in the laser Raman spectra by a group of sharp scattering peaks at 376,700,989 and 1 039 cm-1. In addition these scattering peaks show an intact crystal shape. The FTIR peaks and Raman spectral peaks shift to higher frequencies showing GE synthetic jadeite jade lacking isomorphism of heavy positive ions.

关 键 词：合成翡翠 振动光谱 红外光谱 拉曼光谱 

分 类 号：G312[文化科学]