| Autor: |
Matanitobua, Vitukawalu P., Noller, Barry N., Chiswell, Barry, Ng, Jack C., Bruce, Scott L., Huang, Daphne, Riley, Mark, Harris, Hugh H. |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2007, Vol. 879 Issue 1, p1845-1848, 4p, 3 Charts, 2 Graphs |
| Abstrakt: |
X-ray Absorption Near Edge Spectroscopy (XANES) gives arsenic form directly in the solid phase and has lower detection limits than extraction techniques. An important and common application of XANES is to use the shift of the edge position to determine the valence state. XANES speciation analysis is based on fitting linear combinations of known spectra from model compounds to determine the ratios of valence states and/or phases present. As(V)/As(III) ratios were determined for various Australian mine waste samples and dispersed mine waste samples from river/creek sediments in Vatukoula, Fiji. © 2007 American Institute of Physics [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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