Determination of rhenium content in molybdenite by ICP–MS after separation of the major matrix by solvent extraction with N-benzoyl-N-phenylhydroxalamine

Li, Jie; Zhong, Ling; Tu, Xin; Liang, Xirong; Xu, Ji‐Feng

doi:10.1016/j.talanta.2010.01.043

Cited by 26 publications

(9 citation statements)

References 31 publications

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“…BPHA is relatively small in size, has abundant π electrons, is stable in highly acidic solutions and acts as a superior ligand for solvent extraction of group 4, 5 and 6 elements in the periodic table, such as Nb, Ta, Zr, Hf, Ti, Mo and W (Caletka and Krivan , Goguel , Yang and Pin , Shinotsuka and Suzuki , Li et al . ). Amberlite CG‐71 resin possesses excellent chemical and physical stability and can absorb large amounts of BPHA because it contains relatively large numbers of active aromatic sites that allow π–π interactions.…”

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confidence: 97%

Measurement of the Isotopic Composition of Molybdenum in Geological Samples by MC‐ICP‐MS using a Novel Chromatographic Extraction Technique

Liang

Zhong

et al. 2014

Geostandard Geoanalytic Res

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106

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A novel preconcentration method is presented for the determination of Mo isotope ratios by multi-collector inductively coupled plasma-mass spectrometry (MC-ICP-MS) in geological samples. The method is based on the separation of Mo by extraction chromatography using N-benzoyl-N-phenylhydroxylamine (BPHA) supported on a microporous acrylic ester polymeric resin (Amberlite CG-71). By optimising the procedure, Mo could be simply and effectively separated from virtually all matrix elements with a single pass through a small volume of BPHA resin (0.5 ml). This technique for separation and enrichment of Mo is characterised by high selectivity, column efficiency and recovery (~100%), and low total procedural blank (~0.18 ng). A 100 Mo-97 Mo double spike was mixed with samples before digestion and column separation, which enabled natural mass-dependent isotopic fractionation to be determined with a measurement reproducibility of < 0.09‰ (d 98/95 Mo, 2s) by MC-ICP-MS. The mean d 98/95 Mo SRM 3134 (NIST SRM 3134 Mo reference material; Lot No. 891307) composition of the IAPSO seawater reference material measured in this study was 2.00 ± 0.03‰ (2s, n = 3), which is consistent with previously published values. The described procedure facilitated efficient and rapid Mo isotopic determination in various types of geological samples. Une nouvelle m ethode de pr e-concentration est pr esent ee pour la d etermination des rapports isotopiques du Mo par spectrom etrie de masse a source plasma et multi-collection (MC -ICP-MS) dans des echantillons g eologiques. La m ethode est bas ee sur la s eparation du Mo par Chromatographie d'extraction en utilisant du Nbenzoyle-N-ph enylhydroxylamine (BPHA) support e par une r esine polym ere d'ester acrylique microporeuse (Amberlite CG-71). En optimisant la proc edure, le Mo peutêtre simplement et efficacement s epar e de la quasitotalit e des el ements de la matrice avec un seul passage a travers un petit volume de r esine BPHA (0,5 ml). Cette technique de s eparation et d'enrichissement du Mo est caract eris ee par une grande s electivit e, une grande efficacit e et une grande r ecup eration de la colonne (~100%), et un faible total de la proc edure de blanc (~0,18 ng). Un double spike Mo 100 -Mo 97 a et e m elang e avec les echantillons avant la digestion et la s eparation sur colonne, ce qui a permis la d etermination du fractionnement isotopique naturel d ependant de la masse avec une reproductibilit e de mesure de < 0,09 ‰ ( d98/95 Mo, 2s) par MC -ICP-MS. La composition moyenne d 98/95 Mo SRM3134 (mat eriau de r ef erence NIST SRM 3134 Mo; Lot n°891307) de l'eau de mer de r ef erence IAPSO mesur ee dans cette etude est de 2,00 ± 0,03 ‰ (2s, n = 3), ce qui est coh erent avec les valeurs pr ec edemment publi ees. La proc edure d ecrite facilite une d etermination efficace et rapide des rapports isotopiques du Mo dans divers types d' echantillons g eologiques.Mots-clés : isotopes du molybd ene, N-benzoyle-Nph enylhydroxylamine, chromatographie d'extraction, pr econcentration, double spike, MC-...

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confidence: 97%

Measurement of the Isotopic Composition of Molybdenum in Geological Samples by MC‐ICP‐MS using a Novel Chromatographic Extraction Technique

Liang

Zhong

et al. 2014

Geostandard Geoanalytic Res

Self Cite

106

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“…Variation in the correction factors between the results of the initial and final standard runs was ∼2%. Details of the analytical program are described by Li et al (2010) and Shinotsuka and Suzuki (2007).…”

Section: Methodsmentioning

confidence: 99%

U–Pb and Re–Os Geochronology of Karamay Porphyry Mo–Cu Deposit in Western Junggar, NW China

Wang

Han

et al. 2013

Resource Geology

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The Karamay porphyry Mo-Cu deposit, discovered in 2010, is located in the West Junggar region of Xinjiang of northwest China. The deposit is hosted within the Karamay granodiorite porphyry that intruded into Early Carboniferous sedimentary strata and its exo-contact zone. The LA-ICPMS U-Pb method was used to date the zircons from the granodiorite samples of the porphyry. Analyses of 12 spots of zircons from the granodiorite samples yield a U-Pb weighted mean age of 300.8 ± 2.1 Ma (2σ). Re-Os dating for five molybdenite samples obtained from two prospecting trenches and three outcrops in the deposit yield a Re-Os isochron age of 294.6 ± 4.6 Ma (2σ), with an initial 187 Os/ 188 Os of 0.0 ± 1.1. The isochron age is within the error of the Re-Os model ages, demonstrating that the age result is reliable. The Re-Os isochron age of the molybdenite is consistent with the U-Pb age of the granodiorite porphyry, which indicates that the deposit is genetically related with an Early Permian porphyry system. The ages of the Karamay Mo-Cu deposit and the ore-bearing porphyry are similar to the ages of intermediate-acid intrusions and Cu-Mo-Au polymetallic deposits in the West Junggar region. This consistency suggests the same geodynamic process to the magmatism and related mineralization.

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“…0.3 pg Os. Details of the analytical program are described in a separate paper (Li et al, 2010); they are only briefly summarized here. Carius tube digestion was used.…”

Section: Methodsmentioning

confidence: 99%

Re-Os Geochronology of Molybdenite from Yuanzhuding Porphyry Cu-Mo Deposit in South China

et al. 2010

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The Yuanzhuding porphyry Cu-Mo deposit, discovered in 2008, is located within the southern segment of the Chenzhou-Huaiji fault belt, South China. The deposit is hosted within the Upper Cambrian neritic facies sandstone and shale formation that is the strata of the axis and wings of within the Yuanzhuding anticline. Both of the porphyry and exo-contact zone contain Cu-Mo mineralization. Economic orebodies occur mainly in the exo-contact zone around the porphyry. We dated 11 molybdenite samples obtained from two borehole cores of the deposit, using the Re-Os method. Analyses of eight molybdenite samples from borehole ZK12-112 yield a Re-Os isochron age of 157.3 Ϯ 4.3 Ma (2s), and analyses of 11 samples from boreholes ZK12-112 and ZK16-104 yield a Re-Os isochron age of 155.6 Ϯ 3.4 Ma (2s). These isochron ages are within the error of the Re-Os model ages, demonstrating that the age results are reliable and that the Yuanzhuding porphyry Cu-Mo deposit formed during the late Middle Jurassic. The formation age of the Yuanzhuding Cu-Mo deposit is similar to the age of intermediate-acid rocks and W-Sn polymetallic deposits along the Chenzhou-Huaiji fault belt. This concordance suggests the same geodynamic process to the igneous activity and related mineralization, raising the potentiality of the porphyry Cu-Mo mineralization in the belt.

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Determination of rhenium content in molybdenite by ICP–MS after separation of the major matrix by solvent extraction with N-benzoyl-N-phenylhydroxalamine

Cited by 26 publications

References 31 publications

Measurement of the Isotopic Composition of Molybdenum in Geological Samples by MC‐ICP‐MS using a Novel Chromatographic Extraction Technique

Measurement of the Isotopic Composition of Molybdenum in Geological Samples by MC‐ICP‐MS using a Novel Chromatographic Extraction Technique

U–Pb and Re–Os Geochronology of Karamay Porphyry Mo–Cu Deposit in Western Junggar, NW China

Re-Os Geochronology of Molybdenite from Yuanzhuding Porphyry Cu-Mo Deposit in South China

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