显微拉曼光谱在珍珠鉴定中的应用

本文用显微拉曼对三种珍珠 (天然海水珍珠、人工养殖海水珍珠、人工养殖淡水珍珠 )做了测试与分析。结果表明 :虽然主峰相同 ,然而这三种珍珠的拉曼谱有不可置疑的差别。另外 ,珍珠粉和整粒珍珠也有明显差异。测试中还发现 ,与拉曼谱同时记录到的光荧光谱也是有关珍珠的宝贵信息。因此 ,显微拉曼光谱仪记录到的材料振动谱和荧光谱为珍珠的分析研究及日常鉴定提供了可靠的信息资料。     

An analysis of nuclear charge radii based on the empirical formula

Several nuclear charge radii had been calculated based on the law of A1/3 and isospin dependence Z1/3 formula which had been used to describe the charge radii data. It is achieved that the isospin dependence Z1/3 formula is superior to the generally accepted A1/3 law through mean root square deviation analysis, that is, the Z1/3 formula is more effective to describe the charge radii data.     

An analysis of nuclear charge radii based on the empirical formula

Several nuclear charge radii had been calculated based on the law of A^1/3 and isospin dependence Z^1/3 formula which had been used to describe the charge radii data. It is achieved that the isospin dependence Z^1/3 formula is superior to the generally accepted A^1/3 law through mean root square deviation analysis, that is, the Z^1/3 formula is more effective to describe the charge radii data.