Study on elemental speciation in airborne particulate matter by XANES

WANG Yinsong Li Aiguo WEI Lun ZHANG Yuanxun LI Deyi QIU Huiyuan LI Yan ZHANG Guilin

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Study on elemental speciation in airborne particulate matter by XANES

更新时间：2021-03-12

- Study on elemental speciation in airborne particulate matter by XANES
- NUCLEAR TECHNIQUES Issue 11, (2004)
- 作者机构：
  
  1. 中国科学院上海应用物理研究所
  2. 中国科学院高能物理研究所
  3. 上海市环境监测中心
  5. 1O,北京,0039
  6. ,上海,200030
- 作者简介：
- 基金信息：
  
  中国科学院知识创新工程重要方向性项目(KJCX2-SW-N01);国家自然科学基金 (19935 0 2 0 )资助
- DOI：
  CLC： X51
- Published：01 November 2004
- 稿件说明：
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[1]王荫淞,李爱国,魏仑,张元勋,李德义,裘惠源,李燕,张桂林,谢亚宁,张静,张元茂,山祖慈.用X射线吸收近边结构谱研究大气颗粒物中元素的种态[J].核技术,2004(11):810-813.

WANG Yinsong Li Aiguo WEI Lun ZHANG Yuanxun LI Deyi QIU Huiyuan LI Yan ZHANG Guilin. Study on elemental speciation in airborne particulate matter by XANES[J]. Nuclear techniques, 2004, (11): 810-813.
[1]王荫淞,李爱国,魏仑,张元勋,李德义,裘惠源,李燕,张桂林,谢亚宁,张静,张元茂,山祖慈.用X射线吸收近边结构谱研究大气颗粒物中元素的种态[J].核技术,2004(11):810-813. DOI：

WANG Yinsong Li Aiguo WEI Lun ZHANG Yuanxun LI Deyi QIU Huiyuan LI Yan ZHANG Guilin. Study on elemental speciation in airborne particulate matter by XANES[J]. Nuclear techniques, 2004, (11): 810-813. DOI：

摘要

大气颗粒物中元素的种态研究

对评价其毒性和污染来源等有很重要的意义。本工作采集了不同地点和不同粒径的大气颗粒物样品

测定了样品中铬、锰、铜和锌的X射线吸收近边结构（XANES）谱

利用该谱分析了这些元素在颗粒物中的种态。结果显示

所采集的样品中铬主要以三价形式存在

锰主要以二价形式存在

铜也以二价形式存在

而锌主要以硫酸盐存在。用质子激发X射线荧光（PIXE）法测定了这些元素在样品中的浓度

观察到不同采样点和不同粒径的颗粒物中金属含量的差别

但未看到种态的这种变化。

Abstract

The study on elemental speciation in airborne particulate matter (PM) is important for its evaluation of toxicity and source of pollution. In the present work

samples of airborne PM were collected in different site and with different size

and the X-ray absorption near-edge structure (XANES) spectra of Cr

Cu and Zn were measured. The oxidation state of these elements and possible chemical speciation are discussed using the spectra The results show that in our samples

the oxidation state of Cr is likely tervalent

Mn exists mainly as divalence

Cu also exists as divalence and Zn exists mainly as sulfate. The elemental concentrations in the samples were determined by proton induced X-ray emission (PIXE)

The difference in concentrations was observed for samples from different site and with different size

but obvious difference in speciation was not found.

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