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Rapid detection of arsenic minerals using portable broadband NQR

Lehmann-Horn, J. A., Miljak, D. G., O'Dell, L. A., Yong, R. and Bastow, T. J. 2014, Rapid detection of arsenic minerals using portable broadband NQR, Geophysical Research Letters, vol. 41, no. 19, pp. 6765-6771, doi: 10.1002/2014GL061386.

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Title Rapid detection of arsenic minerals using portable broadband NQR
Author(s) Lehmann-Horn, J. A.
Miljak, D. G.
O'Dell, L. A.ORCID iD for O'Dell, L. A. orcid.org/0000-0002-7760-5417
Yong, R.
Bastow, T. J.
Journal name Geophysical Research Letters
Volume number 41
Issue number 19
Start page 6765
End page 6771
Total pages 7
Publisher Wiley
Place of publication London, Eng.
Publication date 2014
ISSN 0094-8276
1944-8007
Keyword(s) arsenic
instruments
minerals processing
nuclear quadrupole resonance
spectroscopy
zero-field nuclear magnetic resonance
Science & Technology
Physical Sciences
Geosciences, Multidisciplinary
Geology
NUCLEAR-QUADRUPOLE RESONANCE
GOLD
NMR
PULSES
WATERS
PYRITE
STATE
AS-75
Summary The remote real-time detection of specific arsenic species would significantly benefit in minerals processing to mitigate the release of arsenic into aquatic environments and aid in selective mining. At present, there are no technologies available to detect arsenic minerals in bulk volumes outside of laboratories. Here we report on the first room-temperature broadband 75As nuclear quadrupole resonance (NQR) detection of common and abundant arsenic ores in the Earth crust using a large sample (0.78 L) volume prototype sensor. Broadband excitation aids in detection of natural minerals with low crystallinity. We briefly discuss how the proposed NQR detector could be employed in mining operations. Key Points Transformation of chemical analysis method to geophysical detection technologyFirst NQR ore characterization of selected arsenic minerals in bulk volumesBroadband NQR sensor to detect arsenic minerals with low crystallinity
Language eng
DOI 10.1002/2014GL061386
Field of Research 020401 Condensed Matter Characterisation Technique Development
Socio Economic Objective 849999 Mineral Resources (excl. Energy Resources) not elsewhere classified
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2014, Wiley-Blackwell
Persistent URL http://hdl.handle.net/10536/DRO/DU:30069929

Document type: Journal Article
Collections: Institute for Frontier Materials
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.