Representation and Application of Infrared Reflection Spectra of Gems
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摘要: 采用红外反射光谱测试技术,并配合背衬镜反射、Dispersion校正、Kramers-Kronig变换等方法,对市场上面市的翡翠与其相似玉、琥珀与人造树脂仿琥珀、绿松石与碳酸盐仿绿松石、象牙与角质物仿象牙、仿古玉及充填处理宝玉石的红外反射光谱进行了研究。结果表明,在中红外区的官能团和指纹区范围内,利用傅立叶变换红外光谱仪配备的镜(漫)反射器,能有效地测定由不透明或透明宝石中羟基、水分子的内、外振动及阴离子、络阴离子的伸缩或弯曲振动致红外吸收光谱以及有机宝石中各种官能团、配位基的伸缩和弯曲振动致红外吸收光谱。对宝石的红外反射光谱表征及在宝石鉴定中的应用一并予以了讨论。
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关键词:
- 红外反射光谱 /
- Kramers-Kronig变换 /
- 表征与应用 /
- 宝玉石
Abstract: By using infrared reflection spectrum analysis technique in cooperation with the emendation ways such as Dispersion,Kramers-Kronig transform and back mirror-reflection,jadeite jade and the analogous jade,amber and the artificial resin imitation amber,turquoise and the carbonate imitation turquoise,ivory and the horniness imitation ivory,imitation ancient jade,filled turquoise and filled jadeite jade on gem markets were investigated.The results show that the infrared absorption spectra due to the inner and outer vibration of hydroxyl and H2O in opaque or transparent gems and the flex and curve vibration of complex anionic group and coordination group,are effectively examined by using the direct reflection accessory and diffuse reflection accessory of Fourier transform infrared spectrometry in the range of function and fingerprint group of medium infrared light section.The representation and identification of infrared reflection spectra of gems are analyzed primarily in the paper. -
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[1] 吴瑾光,许振华,李琼瑶,等.近代傅里叶变换红外光谱技术及应用(上、下卷)[M]. 北京:科学技术文献出版社,1994. [2] 冯祖儒,周国定,廖强强,等.仪器装置与实验技术红外镜反射光谱的测试与解析[J]. 分析化学,2003,31(3):371—375. [3] 朱卫.红外镜面反射光谱在分析测试中的应用[J]. 实验室研究与探索,2002,21(6):66—67. [4] Farmer V C.矿物的红外光谱[M]. 应育浦,等译.北京:科学出版社,1982. [5] S Fernandes,M Khan,G Cheudhary.特殊宝石的红外吸收光谱汇编[J]. 宝石和宝石学杂志,2003,5(2):34—37.
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