极地研究

极地研究 ›› 2005, Vol. 17 ›› Issue (4): 264-271.

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同步辐射加速器X荧光分析技术在北极气溶胶研究中的应用

程邦波;谢周清;王新明;黄宇营;何伟;徐思琦;孙立广;   

  • 出版日期:2005-12-30 发布日期:2005-12-30

THE APPLICATION OF SYNCHROTRON RADIATION X-RAY FLUORESCENCE TO RESEARCH ON ARCTIC AEROSOL

  • Online:2005-12-30 Published:2005-12-30

PDF (PC)

1537

被引次数

13

摘要：

本文应用同步辐射加速器X荧光(SR-XRF)分析技术并结合电感耦合等离子体质谱(ICP-MS)方法对中国首次北极考察采集的气溶胶样品进行了定量分析。SR-XRF方法对6种元素的分辨率分别为1.1ng/cm2(Ca)、39.7ng/cm2(V)、17.6ng/cm2(Fe)、2.3ng/cm2(Ni)、1.8ng/cm2(Zn)、6.4ng/cm2(Pb)。6种元素的浓度分别为117.3(ng/m3,Ca)、16.5(ng/m3,V)、19.3(ng/m3,Fe)、3.4(ng/m3,Ni)、4.5(ng/m3,Zn)、1.4(ng/m3,Pb)。该结果与文献报道的相应海区夏季气溶胶化学成分含量具有可比性。由于SR-XRF方法灵敏度高,属于无损分析,在极地气溶胶研究中具有广泛的应用前景。

关键词: 同步辐射加速器X荧光(SR-XRF);北极;气溶胶

Abstract:

Quantitative analysis of aerosol samples, collected in the marine boundary layer in the Arctic region during the First Chinese Arctic Research Expedition, was performed using synchrotron radiation X-ray fluorescence (SR-XRF) and ICP-MS method. The resolution for six elements using SR-XRF method were 451.2 ng/cm~2 (Ca),195.9 ng/cm~2 (V), 276.2 ng/cm~2 (Fe), 43.4 ng/cm~2 (Ni), 34.2 ng/cm~2 (Zn), 6.4 ng/cm~2 (Pb), respectively. The levels of elements were 117.3(ng/m~3, Ca)、 16.5(ng/m3, V)、 19.3 (ng/m~3, Fe)、3.4(ng/m~3, Ni)、4.5(ng/m~3, Zn)、1.4(ng/m~3, Pb), respectively. The results for these elements were in accordance with the previous report. Based upon the results and the advantage of SR-XRF, which is highly sensitive and non-destructive of sample, this method will be intensively used in the study of aerosols in polar region in the future.