文献类型：期刊文献

中文题名：金黄色海水珍珠的无损检测

英文题名：Non-destructive Testing of Golden Saltwater Pearls

作者：陈育[1];郭守国[1];史凌云[1]

机构：[1]华东理工大学材料科学与工程学院,上海200237

年份：2009

卷号：35

期号：4

起止页码：578

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：CSTPCD;;Scopus;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

基金：上海市重点学科建设项目(B502);浙江省重大科技攻关招标项目(81)

语种：中文

中文关键词：金黄色海水珍珠;改色;拉曼光谱;紫外可见吸收光谱;无损检测

外文关键词：golden saltwater pearl; color treated; Raman spectra; UV-visible absorption spectra; nondestructive testing

摘要：对金黄色海水珍珠(简称金珠)和颜色经过加工处理的金色珍珠(改色金珠)进行了检测和分析。放大观察下,金珠的表面光滑,颜色分布均匀,改色金珠表面损伤严重,纹理明显,局部有颜色富集。拉曼光谱中,金珠在275 cm-1有很明显的拉曼位移,改色金珠的谱线荧光背景明显高于金珠,275 cm-1处的拉曼位移基本被荧光谱线覆盖。紫外可见吸收光谱中,金珠在284、357 nm处有明显的紫外吸收,改色金珠在近紫外区没有特征吸收。根据放大检测、拉曼光谱以及紫外可见光谱的区别,可快速、无损、有效地鉴定区分金珠和改色金珠。
Golden saltwater pearls and color-treated golden pearls were tested and analyzed. According to the magnify observation, the surface of golden saltwater pearls were smooth. The surface of color-treated golden pearls was destroyed; color was enriched in local area. In Raman spectra, fluorescence background of color-treated golden pearls was significantly higher than that of golden pearls. The intensity of 275 cm^-1 Raman of golden saltwater pearls band was more obvious and stronger than that of color-treated golden pearls. In UV-visible absorption spectra, there were characteristic absorption peaks of 284 nm and 357 nm, and no characteristic absorption peaks in the spectra of color-treated golden pearls. According to the differences of magnify observation, Raman and UV-visible spectra between golden saltwater pearls and color-treated golden pearls, they could be quickly and effectively set apart without any damage.