OSA's Digital Library

Applied Spectroscopy

Applied Spectroscopy

| PUBLISHED BY SAS — AVAILABLE FROM SAS AND OSA

  • Vol. 49, Iss. 6 — Jun. 1, 1995
  • pp: 808–812

Noninvasive Quantitative Chromium(III) Speciation in Neat Solid Mixtures by Extended X-ray Absorption Fine Structure Spectroscopy

M. M. Lamoureux, J. C. Hutton, D. L. Styris, and R. L. Gordon

Applied Spectroscopy, Vol. 49, Issue 6, pp. 808-812 (1995)


View Full Text Article

Acrobat PDF (573 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations
  • Export Citation/Save Click for help

Abstract

A procedure that uses extended X-ray absorption fine structure (EXAFS) spectroscopy for quantitative chromium(III) speciation in neat solid mixtures is described. The procedure uses the full, filtered EXAFS, e.g., 4 ≤ <i>k</i> ≤ 12 Å<sup>-1</sup>, rather than the smaller <i>k</i>-range associated with a single coordination sphere. Concentration is determined by a simple correlation of full, filtered EXAFS of standards with full, filtered EXAFS of mixtures. Under optimized conditions, calibration curves for mixtures of Cr<sub>2</sub>O<sub>3</sub> and Cr(NO<sub>3</sub>)<sub>3</sub>] · 9H<sub>2</sub>O have slopes of 1.002, respective intercepts of -0.7% and 0.5%, and correlation coefficients of 0.9991. Fluorescence EXAFS from mixtures must be compared to fluorescence EXAFS from standards, and the matrices and thicknesses of standards and mixtures must be closely matched. Transmission EXAFS of standards must be obtained to correct for self-absorption effects.

Citation
M. M. Lamoureux, J. C. Hutton, D. L. Styris, and R. L. Gordon, "Noninvasive Quantitative Chromium(III) Speciation in Neat Solid Mixtures by Extended X-ray Absorption Fine Structure Spectroscopy," Appl. Spectrosc. 49, 808-812 (1995)
http://www.opticsinfobase.org/as/abstract.cfm?URI=as-49-6-808


Sort:  Journal  |  Reset

References

References are not available for this paper.

Cited By

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited