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  

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

作　　者：程邦波[1] 谢周清[1] 王新明[1] 黄宇营[2] 何伟[2] 徐思琦[1] 孙立广[1] 

机构地区：[1]中国科技大学极地环境研究室,合肥230026 [2]中国科学院高能物理研究所,北京100039

出　　处：《极地研究》2005年第4期264-271,共8页Chinese Journal of Polar Research

基　　金：国家自然基金(40306001);教育部百篇优秀博士论作者专项资金(200354);中科院优秀博士论文作者专项资金资助;北京正负电子对撞机实验室支持(SR-03097)

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。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^2 , Ca）, 16.5（ng/m^3, 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.

关 键 词：同步辐射加速器X荧光(SR-XRF) 北极 气溶胶 

分 类 号：X851[环境科学与工程—环境工程]