Nuclide analyses of rare earth elements of the Oklo uranium ore samples: a new method to estimate the neutron fluence

1988 ◽  
Vol 88 (3-4) ◽  
pp. 330-336 ◽  
Author(s):  
Hiroshi Hidaka ◽  
Akimasa Masuda
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Neutron Fluence ◽  
New Method ◽  
Uranium Ore

scholarly journals A new method for recovering rare earth elements from the hyperaccumulating fern Dicranopteris linearis from China

2021 ◽  
Vol 166 ◽  
pp. 106879
Author(s):  
Bastien Jally ◽  
Baptiste Laubie ◽  
Zeinab Chour ◽  
Laurence Muhr ◽  
Rongliang Qiu ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
New Method ◽  
Dicranopteris Linearis

scholarly journals Rare Earth Element Determination in Uranium Ore Concentrates Using Online and Offline Chromatography Coupled to ICP-MS

Minerals ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 55 ◽  
Author(s):  
Veronica C. Bradley ◽  
Benjamin T. Manard ◽  
Benjamin D. Roach ◽  
Shalina C. Metzger ◽  
Kayron T. Rogers ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Rare Earth ◽  
Rare Earth Elements ◽  
Inductively Coupled Plasma ◽  
High Performance ◽  
Isotope Dilution Mass Spectrometry ◽  
Standard Addition ◽  
Element Determination ◽  
Uranium Ore ◽  
Icp Ms

The determination of trace elements, particularly rare earth elements, in uranium ore concentrates (UOCs) is important as the pattern can be indictive ore characteristics. Presented here is a methodology for accurately quantifying rare earth elements (REE) in UOCs. To improve the measurement uncertainty, isotope dilution mass spectrometry (IDMS) was utilized over other quantification techniques such as external calibration or standard addition. The isotopic determinations were measured by inductively coupled plasma-mass spectrometry (ICP-MS). To obtain high-fidelity isotopic measurements, separation of the REE from the uranium matrix was achieved by high-performance ion chromatography (HPIC), reducing the isobaric interferences. After separation, the target analytes were analyzed in two different modalities. For high precision analysis, the separated analytes were collected and measured by ICP-MS in an “offline” fashion. For a rapid approach, the separated analytes were sent directly into an ICP-MS for “online” analysis. These methods have been demonstrated to accurately quantify the REE content in a well-characterized UOC sample.

scholarly journals Rare earth elements in uranium ore deposits from Namibia: A nuclear forensics tool

2021 ◽  
Vol 237 ◽  
pp. 106668
Author(s):  
Dakalo Madzunya ◽  
Vera Uushona ◽  
Manny Mathuthu ◽  
Wanke Heike
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Nuclear Forensics ◽  
Ore Deposits ◽  
Uranium Ore

scholarly journals Abundance of fissiongenic and pre-reactor natural rare-earth elements in a uranium ore sample from Oklo.

1988 ◽  
Vol 22 (2) ◽  
pp. 47-54 ◽  
Author(s):  
Hiroshi Hidaka ◽  
Akimasa Masuda ◽  
Isao Fujii ◽  
Hiroshi Shimizu
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Uranium Ore

Characteristics of ore-forming fluids in the Xiangshan uranium ore-field: Constraints from trace elements and rare earth elements

2019 ◽  
Vol 35 (9) ◽  
pp. 2774-2786 ◽  
Author(s):  
LIU Bin ◽  
◽  
CHEN WeiFeng ◽  
FANG QiChun ◽  
MAO YuFeng ◽  
...  
Keyword(s):  
Trace Elements ◽  
Rare Earth ◽  
Rare Earth Elements ◽  
Uranium Ore

scholarly journals Prospects for discovery of industrial concentrations of rare and rare-earth elements in the Alekseevsko-Lysogorskiy uranium-ore area of Ingulskiy megablock of the Ukrainian shield

2019 ◽  
pp. 3-10 ◽  
Author(s):  
G. A. Kalashnyk
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
General Pattern ◽  
Rare Metal ◽  
Uranium Mineralization ◽  
Raw Material ◽  
Ukrainian Shield ◽  
Material Base ◽  
Uranium Ore ◽  
Rare Metal Mineralization

The article presents the results of the assessment of the prospects for discovery of industrial concentrations of rare and rare-earth elements in the Alekseevsko-Lysogorskiy uranium-ore area of Ingulskiy megablock of the Ukrainian Shield. General pattern in the distribution of industrial objects of rare-metal and uranium mineralization in the Ingulskiy megablock of the Ukrainian Shield, caused by similar deep-seated factors of ore formation, are revealed. The complex of regional and criteria of uranium mineralization of a rare-earth-thorium-uranium formation in silicon-potassium metasomatites of the Alekseevsko-Lysogorskiy ore region is substantiated: geological-structural, mineralogical-geochemical, hydrogeological. There were presented characteristic local features of manifestations of rare-metal mineralization in this region. Based on the results of the analysis of geological and geophysical materials, it was possible to identify new uranium and complex uranium rare-metal deposits with higher mineralization parameters in optimal geological and structural conditions in the Alekseevsko-Lysogorskiy uranium ore region. There has been established the possibility of identifying within the limits of known uranium ore fields, manifestations of uranium mineralization of the rank such as deposit, ore occurrence of this uranium ore region of industrial concentrations of rare and rare-earth elements. The possibility of increasing the value of known deposits and ore occurrences of uranium of the Alekseevsko-Lysogorskiy uranium ore region due to the complexity of ore use is substantiated. According to the degree of manifestation of the complex of criteria, prospective ore and potentially ore zones are discovered for possible detection of industrial concentrations of rare metals and rare-earth elements within the Alekseevsko-Lysogorskiy ore region. There were developed recommendations for further research in the Alekseevsko-Lysogorskiy uranium ore region with the aim of improving the quality of the raw material base of rare and rare-earth elements.

Determination of trace rare earth elements in uranium ore samples by triple quadrupole inductively coupled plasma mass spectrometry

2021 ◽  
Author(s):  
Xiaotong Ding ◽  
Wenting Bu ◽  
Youyi Ni ◽  
Xuepeng Shao ◽  
Ke Xiong ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Rare Earth ◽  
Rare Earth Elements ◽  
Nuclear Forensics ◽  
Inductively Coupled Plasma ◽  
Triple Quadrupole ◽  
Uranium Ore ◽  
Inductively Coupled ◽  
Plasma Mass Spectrometry

The distribution of rare earth elements (REEs) in nuclear ore samples provided basic and important information for nuclear forensics. A method was developed for the determination of REEs in uranium...

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