A Comprehensive Method for Precise Determination of Re, Os, Ir, Ru, Pt, Pd Concentrations and Os Isotopic Compositions in Geological Samples

被引：69
作者：
Chu, Zhuyin [1 ]
Yan, Yan [1 ,2 ]
Chen, Zhi [1 ,2 ]
Guo, Jinghui [1 ]
Yang, Yueheng [1 ]
Li, Chaofeng [1 ]
Zhang, Yanbin [1 ]
机构：
[1] Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
[2] Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100049, Peoples R China
来源：
GEOSTANDARDS AND GEOANALYTICAL RESEARCH | 2015年 / 39卷 / 02期
关键词：
platinum-group elements; Re-Os isotopes; reference materials; ion-exchange interference separation; sample inhomogeneity; elements du groupe du platine; isotopes Re-Os; materiaux de reference; interference et separation d'echange d'ions; heterogeneite de l'echantillon; PLATINUM-GROUP ELEMENTS; PLASMA-MASS SPECTROMETRY; DILUTION ICP-MS; SIDEROPHILE ELEMENTS; EXCHANGE SEPARATION; UPPER-MANTLE; N-TIMS; RHENIUM; RUTHENIUM; DIGESTION;
D O I：
10.1111/j.1751-908X.2014.00283.x
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
A comprehensive method for the precise determination of Re, Os, Ir, Ru, Pt and Pd concentrations as well as Os isotopic compositions in geological samples is presented. Samples were digested by the Carius tube method, and the Os was extracted by conventional CCl4 method. The Re, Ir, Ru, Pt and Pd were first subgroup separated from the matrix elements into Re-Ru, Ir-Pt and Pd by a 2-ml anion exchange column. Subsequently, the Re-Ru was further purified by a secondary 0.25ml anion exchange column or by microdistillation of Ru using CrO3-H2SO4 as an oxidant followed by a secondary 0.25ml anion exchange separation of Re. The Pd and Ir-Pt were further successively purified by an Eichrom-LN column to completely remove Zr and Hf, respectively. Rhenium, Ir, Ru, Pt and Pd were individually measured by multi-collector inductively coupled plasma-mass spectrometry (MC-ICP-MS), except for Ru after microdistillation purification was analysed by negative-thermal ionisation mass spectrometry (N-TIMS). The analytical results for peridotite reference material WPR-1 agree well with the previously published data. Finally, several mafic rock reference materials including TDB-1, WGB-1, BHVO-2, BCR-2, BIR-1a and DNC-1a were analysed for Re-Os isotopes and platinum-group element concentrations to test their suitability for certification. Une methode complete pour la determination precise des concentrations en Re, Os, Ir, Ru, Pt et Pd, ainsi que des compositions isotopiques l'Os dans des echantillons geologiques est presentee. Les echantillons ont ete digeres par la methode du tube de Carius et l'Os a ete extrait par la methode classique CCl4. Le Re, l'Ir, le Ru, le Pt et le Pd sont d'abord separes des autres elements de la matrice sous la forme Re-Ru, Ir-Pt et Pd grace a une colonne d'echange d'anions de 2 ml. Ensuite, l'association Re-Ru est purifiee une seconde fois grace a une colonne secondaire echangeuse d'anions de 0.25 ml, ou par une micro-distillation du Ru en utilisant l'association CrO3-H2SO4 comme oxydant, suivie par une separation secondaire du Re sur une colonne echangeuse d'anions de 0.25 ml. Le Pd et le couple Ir-Pt ont ete purifies successivement une seconde fois grace a une colonne Eichrom-LN pour enlever totalement et successivement le Zr et l'Hf. Le rhenium, l'Ir, le Ru, le Pt et le Pd sont mesures individuellement par spectrometrie de masse a source plasma et a multi-collection (MC-ICP-MS), a l'exception du Ru qui apres purification par micro-distillation a ete analyse par spectrometrie de masse a thermo-ionisation negative (N-TIMS). Les resultats d'analyse de la peridotite de reference WPR-1 sont en bon accord avec les donnees publiees anterieurement. Enfin, plusieurs roches mafiques de reference dont TDB-1, WG B-1, BHVO-2, BCR-2, BIR-1a DNC-1a ont ete analysees pour les isotopes Re-Os et les concentrations en elements du groupe du platine pour tester la possibilite qu'elles puissent etre certifie.
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页码：151 / 169
页数：19
相关论文
共 46 条
[1]   Highly siderophile element composition of the Earth's primitive upper mantle: Constraints from new data on peridotite massifs and xenoliths [J].
Becker, H. ;
Horan, M. F. ;
Walker, R. J. ;
Gao, S. ;
Lorand, J. -P. ;
Rudnick, R. L. .
GEOCHIMICA ET COSMOCHIMICA ACTA, 2006, 70 (17) :4528-4550
[2]   In search of extant Tc in the early solar system:: 98Ru and 99Ru abundances in iron meteorites and chondrites [J].
Becker, H ;
Walker, RJ .
CHEMICAL GEOLOGY, 2003, 196 (1-4) :43-56
[3]   High-precision ru isotopic measurements by multi-collector ICP-MS [J].
Becker, H ;
Dalpe, C ;
Walker, RJ .
ANALYST, 2002, 127 (06) :775-780
[4]   Platinum-group element systematics in Mid-Oceanic Ridge basaltic glasses from the Pacific, Atlantic, and Indian Oceans [J].
Bézos, A ;
Lorand, JP ;
Humler, E ;
Gros, M .
GEOCHIMICA ET COSMOCHIMICA ACTA, 2005, 69 (10) :2613-2627
[5]   Re-Os isotopic measurements at the femtomole level in natural samples [J].
Birck, JL ;
RoyBarman, M ;
Capmas, F .
GEOSTANDARDS NEWSLETTER-THE JOURNAL OF GEOSTANDARDS AND GEOANALYSIS, 1997, 21 (01) :19-27
[6]   Source of highly potassic basalts in northeast China: Evidence from Re-Os, Sr-Nd-Hf isotopes and PGE geochemistry [J].
Chu, Zhu-Yin ;
Harvey, Jason ;
Liu, Chuan-Zhou ;
Guo, Jing-Hui ;
Wu, Fu-Yuan ;
Tian, Wei ;
Zhang, Yan-Long ;
Yang, Yue-Heng .
CHEMICAL GEOLOGY, 2013, 357 :52-66
[7]   Temporal Evolution of the Lithospheric Mantle beneath the Eastern North China Craton [J].
Chu, Zhu-Yin ;
Wu, Fu-Yuan ;
Walker, Richard J. ;
Rudnick, Roberta L. ;
Pitcher, Lynnette ;
Puchtel, Igor S. ;
Yang, Yue-Heng ;
Wilde, Simon A. .
JOURNAL OF PETROLOGY, 2009, 50 (10) :1857-1898
[8]   Separation of osmium from geological materials by solvent extraction for analysis by thermal ionisation mass spectrometry [J].
Cohen, AS ;
Waters, FG .
ANALYTICA CHIMICA ACTA, 1996, 332 (2-3) :269-275
[9]   NEGATIVE THERMAL ION MASS-SPECTROMETRY OF OSMIUM, RHENIUM, AND IRIDIUM [J].
CREASER, RA ;
PAPANASTASSIOU, DA ;
WASSERBURG, GJ .
GEOCHIMICA ET COSMOCHIMICA ACTA, 1991, 55 (01) :397-401
[10]   Extreme platinum-group element fractionation and variable Os isotope compositions in Philippine Sea Plate basalts: Tracing mantle source heterogeneity [J].
Dale, C. W. ;
Luguet, A. ;
Macpherson, C. G. ;
Pearson, D. G. ;
Hickey-Vargas, R. .
CHEMICAL GEOLOGY, 2008, 248 (3-4) :213-238
12345