基于同步辐射X射线荧光光谱研究日本马氏贝珍珠中Zn与Hg的元素相关性
DOI:
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

基金项目:


Correlation of Zn and Hg in pearls from Japanese Pinctada martensii based on synchrotron radiation micro X-ray fluorescence
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    采用同步辐射微区X射线荧光光谱技术(SR-μXRF),探测金绿色和白色日本马氏贝珍珠中Zn和Hg的空间分布。面扫描结果显示,按珍珠质生长的时间先后顺序,Zn和Hg含量呈现“起初低-中间高-再降低”的分布模式,这一分布模式反演出马氏贝在插核手术后过了静水休养期,存在一个高代谢速率期,然后才恢复平稳新陈代谢。两个样品中,Zn和Hg含量呈现正相关,金绿色样品中Zn和Hg相关系数r=0.6,白色样品中Zn和Hg相关系数r=0.58,比较而言,Zn和Hg相关系数高的样品光洁度较好。对Zn和Hg相关系数较高的金绿色日本马氏贝珍珠样品做R型因子分析,分析结果显示影响珍珠层元素变化的主要控制因素有生物生长支持作用、环境影响作用、生物矿化作用3方面,Zn的环境影响因子相对贡献率较高(61.7%),也揭示出Zn和Hg的拮抗作用极大影响Zn的含量变化。研究结果对人工养殖珍珠具有指导意义。

    Abstract:

    In this study, the authors investigated the distribution of Zn and Hg by using synchrotron micro X-ray fluorescence spectrum (SR-μXRF) along the growth circles of the golden-green and white pearls from Japanese Pinctada martensii. Both Zn and Hg concentrations represent the model of "low at first-high-low at last" along the growth rings in microscopic images of the pearl. SR-μXRF mapping images correspond to different periods:recuperating period, balanced period, and an abnormal high metabolism period between these two periods. The μ-XRF mapping data show a positive correlation of Zn and Hg:for the golden-green pearl, r=0.6; while for the white pearl, r=0.58, and the gold-green one has higher quality. Loading matrix of R type factors in the golden-green Japanese Pinctada martensii pearl reveals that the factors that influence element concentrations are biological growth support, environmental impact, and biomineralization. The fact that Zn has higher contribution to the factor of environmental impact reveals that Zn concentration depends on antagonism effect to a large extent. The results obtained by the authors have guiding significance for Pinctada martensii pearl culture.

    参考文献
    相似文献
    引证文献
引用本文

张晋丽,黄圣轩,唐宾,等, 2016. 基于同步辐射X射线荧光光谱研究日本马氏贝珍珠中Zn与Hg的元素相关性[J]. 岩石矿物学杂志, 35(S1):91~98.
ZHANG Jin-li, HUANG Sheng-xuan, TANG Bin, et al, 2016. Correlation of Zn and Hg in pearls from Japanese Pinctada martensii based on synchrotron radiation micro X-ray fluorescence[J]. Acta Petrologica et Mineralogica, 35(S1): 91~98.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2016-10-10
  • 最后修改日期:2016-11-11
  • 录用日期:
  • 在线发布日期: 2017-07-27
  • 出版日期:
文章二维码