| DOI: | 10.1002/2014GL061386
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| 论文题名: | Rapid detection of arsenic minerals using portable broadband NQR |
| 作者: | Lehmann-Horn J.A.; Miljak D.G.; O'Dell L.A.; Yong R.; Bastow T.J.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9720
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| EISSN: | 1944-9451
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| 出版年: | 2014
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| 卷: | 41, 期:19 | | 起始页码: | 6765
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| 结束页码: | 6771
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| 语种: | 英语
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| 英文关键词: | arsenic
; instruments
; minerals processing
; nuclear quadrupole resonance
; spectroscopy
; zero-field nuclear magnetic resonance
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| Scopus关键词: | Arsenic
; Chemical analysis
; Chemical detection
; Instruments
; Minerals
; Nuclear magnetic resonance spectroscopy
; Ore analysis
; Ores
; Resonance
; Spectroscopy
; Structural geology
; Aquatic environments
; Broadband excitation
; Low crystallinity
; Minerals processing
; Mining operations
; Prototype sensor
; Real-time detection
; Zero fields
; Nuclear quadrupole resonance
; aquatic environment
; arsenic
; crust
; geophysical method
; mineral exploration
; ore deposit
; quantum mechanics
; real time
; sensor
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| 英文摘要: | 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 ©2014. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84911091091&doi=10.1002%2f2014GL061386&partnerID=40&md5=a779c5bd196678e0746e37e259fe4ee6
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/6984
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| Appears in Collections: | 气候减缓与适应
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作者单位: | CSIRO Process Science and Engineering, Lucas-Heights, NSW, Australia
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| Recommended Citation: | |
Lehmann-Horn J.A.,Miljak D.G.,O'Dell L.A.,et al. Rapid detection of arsenic minerals using portable broadband NQR[J]. Geophysical Research Letters,2014-01-01,41(19).
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