Near-infrared spectroscopy of autunites

Frost, Ray L. and Erickson, Kristy L. and Adebajo, Moses O. and Weier, Matt L. (2005) Near-infrared spectroscopy of autunites. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 61(3). pp. 367-72.

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DOI : 10.1016/j.saa.2004.04.010

Abstract

NIR spectroscopy has been applied to the study water in the interlayer of the autunite minerals. The spectra of autunites and metaautunites in the first HOH fundamental overtone are different and the spectra of autunites of different origins in the 6000 to 7500 cm-1 region are considerably different. A number of conclusions are made based upon the NIR spectra: (a) The spectra of different autunites are different in the NIR spectral region (b) the spectra of metaautunites show similarity (c) the spectra of metaautunites are different from that of autunites. NIR spectroscopy provides a method of determination of the structure of water in the interlayer of natural autunites. The implication from the variation in the NIR spectra is that the structural arrangement of water for different autunites is different and is sample dependent. NIR spectroscopy has a wide potential for the study of the autunite minerals.

ID Code:	783
Item Type:	Journal Article
Keywords :	autunite, metaautunite, torbernite, saléeite, zeunerite, near, IR spectroscopy
ISSN:	1386-1425
Subjects:	Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > INORGANIC CHEMISTRY (030200)
Divisions:	QUT Faculties and Divisions > Faculty of Science
Copyright Owner :	Copyright 2005 Elsevier
Copyright Statement :	Reproduced in accordance with the copyright policy of the publisher.
Deposited On:	08 Mar 2005
Last Modified:	03 Dec 2008 12:06

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