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Volume 12 Issue 4
Dec.  2010
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LAN Yan, ZHANG Zhu-fu, ZHANG Tian-yang. Identification of Saltwater Cultured Pearls and Freshwater Cultured Pearls by Using X-ray Fluorescence Spectroscopic Technique[J]. Journal of Gems & Gemmology, 2010, 12(4): 31-35.
Citation: LAN Yan, ZHANG Zhu-fu, ZHANG Tian-yang. Identification of Saltwater Cultured Pearls and Freshwater Cultured Pearls by Using X-ray Fluorescence Spectroscopic Technique[J]. Journal of Gems & Gemmology, 2010, 12(4): 31-35.
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Identification of Saltwater Cultured Pearls and Freshwater Cultured Pearls by Using X-ray Fluorescence Spectroscopic Technique

  • 1. National Gemstone Testing Center, Shenzhen 518026, China;

  • 2. Shenzhen Exit-Entry Inspection and Quarantine Bureau, Shenzhen 518026, China

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  • Received Date: September 09, 2010
  • Revised Date: November 11, 2010
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    • Abstract
  • X-ray fluorescence spectroscopic technique(XRF) is used for studying the varieties and contents of trace elements of pearls in order to distingush the freshwater cultured pearls from saltwater cultured pearls.The optimizing working conditions of XRF for detecting the main and trace elements of pearls are also studied. The characteristic peaks of Mn and the values of Sr/Ca could be qualitatively analysed for distinguishing the varieties of pearls. With the working conditions of voltage being 30~35 kV,current being 0.50~0.80 mA and Pd Thick filter,element combination is Ca+Sr+Mn and the ratio of Sr/Ca is in a range from 0.14 to 0.37 for the freshwater cultured pearls; the element combination is mainly Ca and Sr,and the ratio of Sr/Ca is in a range from 0.46 to 0.71 for saltwater cultured pearls.Combined with element constituents and the ratio of Sr/Ca,saltwater cultured pearls could be nondestructively and quickly identified from the freshwater cultured pearls.
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    • References (11)
  • [1]
    Ahmadjan Abduriyi m,Eiko ITO,Hiroshi KITAWAKI,et al.Application of LA-ICP-MS(Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry)to identification of pearl nuclus[J].Research Lab Report,2004,25(Fall):87—88.
    [2]
    木士春,马红艳.养殖珍珠微量元素特征及其对珍珠生长环境的指示意义[J].矿物学报,2001,21(3):551—553.
    [3]
    李立平.海水及淡水养殖珍珠的物质组成[J].地质科学,2009,34(5):752—758.
    [4]
    杜安道,孙秀峰,高月英.淡水珍珠中24种元素的中子活化分析[J].淡水渔业,1985,(4):29—32.
    [5]
    刘承松,陈婉颜,谢玉坎.大珠母贝贝壳珍珠层的化学成分研究[J].动物学杂志,1984,(4):729.
    [6]
    毛振伟,陈顺喜.无核淡水褶纹冠蚌珍珠组分和热性能的研究[J].上海农业科技,1996,(6):32—33.
    [7]
    王慧,封余军,郑碧华,等.等离子体发射光谱分析珍珠贝贝壳结晶的微量元素[J].湖北农学院学报,1998,18(2):142—144.
    [8]
    张刚生,谢先德,温桂兰,等.珍珠层中的锰及其电子顺磁共振谱特征[J].海洋科学,2003,27(4):44—48.
    [9]
    张刚生,谢先德.贝壳珍珠层微结构及成因理论[J].矿物岩石,2000,20(1):11—16.
    [10]
    Habermann D,Banerjee A,Meijer J,et al.Investigation of Manganese in salt-and freshwater pearls[J].Nuclear Instruments and Methods in Physics Research B,2001,181(1—4):739—743.
    [11]
    高岩,杨德辉,杨军涛.X荧光能谱技术应用于珠宝首饰检测的原理和方法[J].宝石和宝石学杂志,2000,2(3):8—12.
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