4Ahmadjan Abduriyim, Eiko ITO, Hiroshi KITAWAKI, et al. Application of LA-ICP MS(Laser Ablation-Inductively Cou pled Plasma Mass Spectrometry) to identification of pear nuelus[J]. ResearchI.abReport,2004,25(Fall):87 88.
5Habermann D, Banerjee A, Meijer J, et al. Investigation of Manganese in salt-and freshwater pearls[J]. Nuclear In struments and Methods in Physics Research B, 2001,181 (1-4):739-743.
