Chemical characterization of environmental particulate matter using synchrotron radiation
Chemical characterization of environmental particulate matter using synchrotron radiation
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DOI：
10.1002/xrs.1300230103
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发表时间：
1994
影响因子：
1.2
通讯作者：
S. Török;G. Faigel;Keith W. Jones;M. Rivers;S. Sutton;S. Bajt
中科院分区：
文献类型：
--
作者：
S. Török;G. Faigel;Keith W. Jones;M. Rivers;S. Sutton;S. Bajt
第一个结果，从一个新的程序，利用同步辐射的环境颗粒物的化学表征。对褐煤电厂飞灰样品进行了微量元素浓度和化学状态测定。这些实验是基于使用布鲁克海文国家同步加速器光源的电子束通过偏转磁铁产生的X射线。X射线的高亮度、能量可调谐性和几乎完全偏振性被用作X26光束线的多功能X射线显微镜（XRM）的基础。穆斯堡尔谱作为一种补充方法，用于测定含铁粉煤灰颗粒中的化合物。结果表明，使用同步辐射XRM的飞灰颗粒中的微量元素的测量和使用X射线吸收近边结构的氧化态的测定的实用性和优势。
First results from a new program for chemical characterization of environmental particulates using synchrotron radiation are described. Trace element concentrations and chemical state determinations were made on fly ash samples from lignite-fired power stations. The experiments were based on the use of x-rays produced by an electron beam passing a bending magnet at the Brookhaven National Synchrotron Light Source. The high brilliance, energy tunability and almost complete polarization of the x-rays were used as the basis of a versatile X-ray microscope (XRM) at the X26 beam line. Mossbauer spectroscopy was employed as a complementary method for determination of the compounds in the iron-containing fly ash particles. The results demonstrate the practicality and strengths of using the synchrotron XRM for measurements of trace elements in fly ash particles and for the determination of oxidation states using x-ray absorption near-edge structure.