期刊
ANALYTICA CHIMICA ACTA
卷 755, 期 -, 页码 1-16出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.aca.2012.09.050
关键词
Synchrotron micro-X-ray fluorescence; Biological important elements; Nanoparticles; Distribution; X-ray absorption spectroscopy
资金
- National Science Foundation
- Environmental Protection Agency [DBI-0830117]
- USDA [2008-38422-19138, 2011-38422-30835]
- NSF [CHE-0840525]
- ESRF
Environmental matrices including soils, sediments, and living organisms are reservoirs of several essential as well as non-essential elements. Accurate qualitative and quantitative information on the distribution and interaction of biologically significant elements is vital to understand the role of these elements in environmental and biological samples. Synchrotron micro-X-ray fluorescence (mu-SXRF) allows in situ mapping of biologically important elements at nanometer to sub-micrometer scale with high sensitivity, negligible sample damage and enable tuning of the incident energy as desired. Beamlines in the synchrotron facilities are rapidly increasing their analytical versatility in terms of focusing optics, detector technologies, incident energy, and sample environment. Although extremely competitive, it is now feasible to find stations offering complimentary techniques like micro-X-ray diffraction (mu-XRD) and micro-X-ray absorption spectroscopy (mu-XAS) that will allow a more complete characterization of complex matrices. This review includes the most recent literature on the emerging applications and challenges of mu-SXRF in studying the distribution of biologically important elements and manufactured nanoparticles in soils, sediments, plants, and microbes. The advantages of using mu-SXRF and complimentary techniques in contrast to conventional techniques used for the respective studies are discussed. (C) 2012 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据