葡萄糖-6-磷酸异构酶、抗环瓜氨酸肽抗体、抗突变型瓜氨酸波形蛋白抗体、类风湿因子对早期类风湿性关节炎的诊断价值  

Silicon-Doped CVD Synthetic Diamond with Photochromic Effect

作　　者：宋中华[1] 陆太进[1,2] 苏隽[1] 高博[1] 唐诗[1] 胡宁[1] 

机构地区：[1]国家珠宝玉石质量监督检验中心,北京100013 [2]国土资源部珠宝玉石首饰管理中心北京珠宝研究所,北京100013

出　　处：《宝石和宝石学杂志》2016年第1期1-5,共5页Journal of Gems & Gemmology

基　　金：云南省高层次卫生技术人才专项经费资助课题项目编号：D-201206

摘　　要：自2012年国家珠宝玉石质量监督检验中心(NGTC)实验室检测到未经揭示CVD合成钻石以来,每年都可检测到不同特征的CVD合成钻石。2014年国家珠宝玉石质量监督检验中心(NGTC)北京实验室收到几粒钻石,检测结果为CVD合成钻石,但其特征与之前所发现的CVD合成钻石有很大区别,它们的紫外-可见光吸收光谱在737nm处的吸收很强,且随着737nm处吸收的增强,短波紫外光下的荧光逐渐减弱。为此,对其中一粒特征CVD合成钻石样品进行了常规宝石学测试及光谱学测试。结果发现,该CVD合成钻石样品经DiamondView^(TM)超短波紫外光照射后,颜色由近无色变为灰蓝色。为进一步探究颜色改变的原因,对该CVD合成钻石样品紫外光照射前、后的紫外-可见光吸收光谱做详细测试分析,结果显示,紫外光致变色主要原因是:该CVD合成钻石样品中的Si含量异常高,超短波高能紫外光激发导致(Si—V)^-和(Si—V)~0之间的转化。这种光致变色CVD合成钻石在国内实验室为首次发现,实验室鉴定时应关注(Si-V)中心的变化。Abstract： Since undisclosed CVD synthetic diamonds found in 2012, NGTC labs have detec- ted various CVD synthetic diamonds with different properties. Some samples were identified to be CVD synthetic diamonds when they were submitted to Beijing lab （NGTC） in 2014. They are of special characteristics, which are different from the Gemesis type CVD dia- monds, such as high silicon concentrations and weak or none fluorescence under SW UV light. Notably, these CVD synthetic diamond samples were characterized by fluorescence im- ages that did not reveal CVD-special growth striations and phosphereseence. In this paper, a heavily silicon-doped round brillant cut CVD synthetic diamond was investigated by UV-Vis, FTIR, PL and gemmological methods such as fluorescence under LW and SW UV light and DiamondViewTM. It was found that a CVD synthetic diamond showed photochromic effect. The colour, graded as I colour with slightly brown hue, temporarily changed to gray blue when illuminated under DiamondViewTM. Based on the analysis of the UV-Vis absorption spectra for the CVD synthetic diamond sample before and after being illuminated by SW UV light, it was found that the silicon concentration was high and the photochromic behavior was the transfer between （Si--V）-and （Si--V）~ defect. At the same time, the fluorescence and phosphorescence strength display some relationship with the concentration of （Si--V）- defect. The silicon-doped CVD synthetic diamond with photochromic effect was identified in China for the first time. The labs should pay attention to this type of CVD synthetic dia- monds.

关 键 词：类风湿性关节炎 葡萄糖6磷酸异构酶 抗环瓜氨酸肽抗体 抗突变型瓜氨酸波形蛋白抗体 类风湿因子 

分 类 号：TS93[轻工技术与工程]