Method Study on the Separation and Enrichment of Rhenium Measured by Negative Thermal Ionization Mass Spectrometry

Li-bing WANG; Wen-Jun QU; Chao LI; Li-min ZHOU; An-dao DU; Bo ZU

2013 Vol. 32, No. 3

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Article navigation > Rock and Mineral Analysis > 2013 > 32(3): 402-408

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Li-bing WANG, Wen-Jun QU, Chao LI, Li-min ZHOU, An-dao DU, Bo ZU. Method Study on the Separation and Enrichment of Rhenium Measured by Negative Thermal Ionization Mass Spectrometry[J]. Rock and Mineral Analysis, 2013, 32(3): 402-408.

Citation:

Method Study on the Separation and Enrichment of Rhenium Measured by Negative Thermal Ionization Mass Spectrometry

1.
Key Laboratory of Rhenium-Osmium Isotopic Geochemistry, Chinese Academy of Geological Sciences, National Research Center for Geoanalysis, Beijing 100037, China
2.
School of the Earth Sciences and Resources, China University of Geoscience (Beijing), Beijing 100083, China

More Information

Corresponding author: Wen-Jun QU, quwenjun@sina.com

Received Date: 30 January 2013

Accepted Date: 06 March 2013

Abstract

Abstract

In Re-Os isotope chronology, the acetone extraction process is quicker and easier compared to the anion exchange method. The Re solution which was separated and purified by acetone extraction is suitable for the measurement by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS), but unsuitable for Negative Thermal Ionization Mass Spectrometry (N-TIMS) directly because of high salt contents. An improvement was made to the acetone extraction method to separate and purify Re for N-TIMS determination by increasing the alkalinity concentration from 5 mol/L to 10 mol/L. Compared with the anion exchange method, the acetone extraction process is not only easier to operate with lower blank (Re 3-7 pg), but also saves time. The signal intensity of Re was over 100 mV per 1 ng Re, which met the requirements of a high-accuracy instrument measurement completely. The national first grade standard material of JDC (GBW 04436) and the laboratory reference material of JCBY were measured to verify the improved method. The Re contents of JDC and JCBY obtained from this method were (17.17±0.50) μg/g and (38.34±0.44) ng/g, respectively, which were consistent with the certified value of JDC (17.39±0.32) μg/g and the certified value of JCBY (38.61±0.86) ng/g. The improved procedure was applied to practical samples with good long-term results.
- Re-Os isotope /
- acetone extraction /
- ion-exchange /
- Negative Thermal Ionization Mass Spectrometry

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References

[1]	Walker R L, Morgen J W, Horan M F. Osmium-187 enrichment in some plumes: Evidence for core-mantle interaction [J].Science, 1995, 269: 819-821. doi: 10.1126/science.269.5225.819 CrossRef Google Scholar
[2]	Hofmann A W. Mantle geochemistry: The message from oceanic volcanism [J].Nature, 1997, 385: 219-229. doi: 10.1038/385219a0 CrossRef Google Scholar
[3]	Shirey S B, Walker R J, Morgan J W. The Re-Os isotope system in cosmochemistry and high-temperature geochemistry [J].Annual Review of Earth and Planetary Sciences, 1998(26): 423-500. Google Scholar
[4]	Mao J W, Lehmann B, Du A D, Kerrich R, Zhang G D, Ma D S, Wang Y T, Zeng M G. Re-Os dating of polymetallic Ni-Mo-PGE-Au mineralization in lower Cambrian black shales of South China and its geologic significance [J].Economic Geology, 2002, 97: 1051-1061. doi: 10.2113/gsecongeo.97.5.1051 CrossRef Google Scholar
[5]	Selby D , Creaser R A. Re-Os geochronology of organic rich sediments: An evaluation of organic matter analysis methods [J].Chemical Geology, 2003, 200: 225-240. doi: 10.1016/S0009-2541(03)00199-2 CrossRef Google Scholar
[6]	Becker H, Horan M F, Walker R J, Gao S, Lorand J P,Rudnick R L. Highly siderophile element composition of the Earth′s primitive upper mantle: Constraints from new data on peridotite massifs and xenoliths [J].Geochimica et Cosmochimica Acta,2006,70: 4528-4550. doi: 10.1016/j.gca.2006.06.004 CrossRef Google Scholar
[7]	Han C M, Xiao W J, Zhao G C, Qu W J, Du A D . Re-Os dating of the Kalatongke Cu-Ni deposit, Altay Shan, NW China, and resulting geodynamic implications [J].Ore Geology Reviews, 2007, 32: 452-468. doi: 10.1016/j.oregeorev.2006.11.004 CrossRef Google Scholar
[8]	Feng C Y, Qu W J, Zhang D Q, Dang X Y, Du A D, Li D X, She H Q. Re-Os dating of pyrite from the Tuolugou stratabound Co(Au) deposit, eastern Kunlun Orogenic Belt, northwestern China [J].Ore Geology Reviews, 2008, 36: 213-220. Google Scholar
[9]	Morgan J W, Golightly D W, Dorrzapf A F. Methods for the separation of rhenium, osmium and molybdenum applicable to isotope geochemistry[J].Talanta, 1991, 38(3): 259-265. doi: 10.1016/0039-9140(91)80045-2 CrossRef Google Scholar
[10]	储著银,陈福坤,王伟,谢烈文,杨岳衡.微量地质样品铼锇含量及其同位素组成的高精度测定方法[J].岩矿测试,2007,26(6): 431-435. Google Scholar
[11]	李杰,梁细荣,董彦辉,涂湘林,许继峰.利用多接收器电感耦合等离子质谱仪(MC-ICP-MS)测定镁铁-超镁铁岩石中的铼-锇同位素组成[J].地球化学,2007,36(2): 153-160. Google Scholar
[12]	杜安道,何红蓼,殷宁万,邹晓秋,孙亚莉,孙德忠,陈少珍,屈文俊.辉钼矿的铼-锇同位素地质年龄测定方法研究[J].地质学报,1994,68(4): 339-347. Google Scholar
[13]	杜安道,赵敦敏,王淑贤,孙德忠,刘敦一.Carius管溶样和负离子热表面电离质谱准确测定辉钼矿铼-锇同位素地质年龄[J].岩矿测试,2001,20(4): 247-252. Google Scholar
[14]	杜安道,屈文俊,李超,杨刚.铼-锇同位素定年方法及分析测试技术的进展[J].岩矿测试,2009,28(3): 288-304. Google Scholar
[15]	李超,屈文俊,杜安道.铼-锇同位素定年法中丙酮萃取铼的系统研究[J].岩矿测试,2009,28(3): 233-238. Google Scholar
[16]	屈文俊,杜安道.高温密闭熔样电感耦合等离子体质谱准确测定辉钼矿中铼-锇地质年龄[J].岩矿测试, 2003,22(4): 254-262. Google Scholar
[17]	周利敏,高炳宇,王礼兵,李超,屈文俊,侯增谦,杜安道.Carius直接蒸馏快速分离锇方法的改进[J].岩矿测试,2012,31(3): 413-418. Google Scholar
[18]	Reisberg L, Meisel T. The Re-Os isotopic system: A review of analytical techniques [J].Geostandards Newsletter, 2002,26(3): 249-267. doi: 10.1111/ggr.2002.26.issue-3 CrossRef Google Scholar
[19]	孟庆,郑磊,夏琼霞,靳永斌,支霞臣.镁铁-超镁铁岩铼-锇同位素体系分析方法[J].岩矿测试,2004,23(2): 92-96. Google Scholar