Affiliation:
1. Universidade Federal de Minas Gerais
2. Universidade Federal do Ceará
Abstract
X-Rays Absorption Fine Structure Spectroscopy (XAFS) is an analytical technique that can be used as a probe to characterize almost all elements, even if they appear in diluted or non-crystalline systems. This is due to the fact that the absorption probability of X-rays has a unique feature for each element, and is modulated by the chemical and physical state of that element, as well as by its neighborhood. This paper presents a brief description of the X-rays absorption phenomenon and the analytical technique involving this phenomenon, as well as the application of XAFS in biosorption studies. For more details on XAFS theory, refer to [1].
Publisher
Trans Tech Publications, Ltd.
Reference9 articles.
1. D.C. Koningsberger, R. Prins (eds. ): X-Ray Absorption, vol. 92 of Chemical Analysis, John Wiley & Sons, New York (1988).
2. G. Cordeiro Silva et al.: Advanced Materials Research Vol. 20-21 (2007), p.643.
3. A.L. Ankudinov et al.: Phys. Rev. B 58 (1998), p.7565.
4. B. Ravel, M. Newville: J. Synchrotron Rad. 12 (2005), p.537.
5. M.C. Teixeira , V.S.T. Ciminelli: Environ. Sci. Tecnol. 39 (2005), p.895.