天然与染色处理玉髓的光谱分析  

Spectroscopic study of natural and dyed chalcedony

作　　者：招博文 戴珏[1] 汤红云[1] 黄国芳[1] 吕晓瑜[1] 涂彩[1] Zhao Bowen;Dai Jue;Tang Hongyun;Huang Guofang;Lü Xiaoyu;Tu Cai(National Center of Quality Supervision & Inspection on Gold-Silver Products, Shanghai)

机构地区：[1]国家金银制品质量监督检验中心,上海

出　　处：《上海计量测试》2017年第5期2-8,12,共8页Shanghai Measurement and Testing

摘　　要：为探寻天然与染色处理玉髓的颜色成因差异与鉴别方法,采用多种大型仪器测试技术,辅以常规检测手段,对常见的红色、绿色系列天然与染色玉髓进行研究。结果表明,放大观察仍是重要的鉴定手段;X射线荧光能谱与近红外光谱可为绿色玉髓的鉴别提供诊断性依据;拉曼光谱可用于红色玉髓的鉴定;紫外-可见-近红外光谱最具普适性,可用于多种玉髓的鉴别。In order to develope the identification technique and explore the colour genesis of natural and dyed chalcedony,conventional tests and several advanced instruments are applied on red and green chalcedony specimens,which are the most common and popular species in the market.It turns out that magnification stays helpful in most cases.EDXRF and FT-NIR spectrum provide diagnostic evidence on separating natural and dyed green chalcedonies,yet Raman spectrum is particularly applicable to the red chalcedony series.UV-Vis-NIR spectrum proves to be the most universal method to identify various types of chalcedony.

关 键 词：玉髓 染色处理 红外光谱 紫外-可见-近红外光谱 颜色成因 

分 类 号：O657.3[理学—分析化学] TS933[理学—化学]