宝石鉴定仪器使用

傅立叶变换红外光谱仪在宝石学研究中的作用

摘要

随着科技的不断发展，新兴的合成宝石和各种宝石处理技术不断出现，传统的宝石鉴定方法已难以满足需要，因此现代测试技术在宝石学中的应用越来越广泛和重要，傅立叶变换红外光谱仪是现代测试仪器中的一种，它是利用宝石在红外光的照射下，引起晶格(分子)、络阴离子团和配位基的振动能级发生跃迁，并吸收相应的红外光，从而产生出特定的光谱，定性或定量的分析宝石的组成或结构。该方法是一种无损的测定方法，可以在不损坏宝石样品的情况下，测定出宝石的品种，宝石是否经过优化处理，区分天然宝石与合成宝石，划分钻石类型，测定宝石中的羟基、水分子等。

关键词：傅立叶变换红外光谱仪、红外光谱、宝石、鉴定、分子振动

Abstract

Summary as technology of constantly development, emerging of synthesis gem and various gem processing technology constantly appears, traditional of gem identification method has difficult to meet needs, so modern test technology in gem learn in the of application increasingly widely and important, FT leaves transform infrared spectrometer is modern test instrument in the of a, it is using gem in infrared light of irradiation Xia, caused lattice (molecular), and complex Yin ion mission and distribution bit base of vibration-level occurs jumped moved, and absorption corresponding of infrared light, to produced out specific of spectrum, Qualitative or quantitative analysis of composition or structure of the gem. Is a non-destructive method for the determination of the method, you can not damage stones sample cases, determination of the gemstone varieties, if a gem is optimized to distinguish natural gem and synthetic gems, diamond type, Division, determination of hydroxyl, water molecules in the gem.

Keywords: Fourier transform infrared spectroscopy, infrared spectroscopy, gemstones, identification, molecular vibrations

目录

摘要-----------------------------------------------------------------------------------------1

Abstract-------------------------------------------------------------------------------------1

第一章傅立叶变换红外光谱仪-------------------------------------------------2

1．1基本原理---------------------------------------------------------------------2

1．2分子振动---------------------------------------------------------------------2

1．3红外光区的划分-----------------------------------------------------------2

第二章测试方法---------------------------------------------------------------------3

2．1 透射法------------------------------------------------------------------------3

2．2 反射法------------------------------------------------------------------------3

第三章宝石学中的应用-----------------------------------------------------------3

3．1 宝石中的羟基、水分子的检测----------------------------------------3

3．2 划分钻石类型---------------------------------------------------------------4

3．3 鉴别人工填充处理宝石--------------------------------------------------4

3．4 确定宝石品种---------------------------------------------------------------4

3．5 鉴别仿制古玉---------------------------------------------------------------4

参考文献-------------------------------------------------------------------------------------5