High-precision copper isotopic analysis using a Nu Sapphire MC-ICP-MS

Wang, Jing; Su, Ben‐Xun; Tang, Dongmei; Yuan, Qing-Han; Li, Wenjun; Gao, Bingyu; Bao, Zhian; Zhao, Ye

doi:10.1039/d2ja00197g

Cited by 8 publications

(13 citation statements)

References 42 publications

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“…8B). The results obtained with the Nu Plasma compare well with the literature values, regardless of the type of MC-ICPMS used, the Sapphire (Nu Instrument, Wrexham, UK) in the conventional high energy pathway 61 or the Neptune. 5,6,10,42 The overall results show that the δ 65 Cu value begins to be significantly offset with a Na/Cu ratio of 1 (Fig.…”

Section: Resultssupporting

confidence: 83%

Performance of the double-Wien filter of the Neoma MC-ICPMS/MS with an application to copper stable isotope compositions

Télouk,

Albalat,

Bourdon

et al. 2023

J. Anal. At. Spectrom.

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Section: Resultssupporting

confidence: 83%

Performance of the double-Wien filter of the Neoma MC-ICPMS/MS with an application to copper stable isotope compositions

Télouk,

Albalat,

Bourdon

et al. 2023

J. Anal. At. Spectrom.

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“…This zoom-lens system is made of two lenses: quad 1 primarily focuses the individual beams, while quad 2 controls the dispersion of the beams relative to each other. 24 Copper isotope analyses were performed in low 18 who also used a Nu Sapphire. We obtained a similar sensitivity in CRC mode, with gas flows in the CRC of 2 mL/min for He and 5 mL/min for H 2 .…”

Section: Copper Isotope Measurements By Sapphire Crc-mc-icpmsmentioning

confidence: 99%

“…Data from Liu al 14. (Thermo Finnigan Neptune Plus MC-ICPMS, gray dots) and Wang et al18 (Nu Sapphire CRC-MC-ICPMS in Conventional mode, yellow dots) are shown for comparison.…”

mentioning

confidence: 99%

Copper Isotope Compositions Measured Using a Sapphire Dual Path MC-ICPMS with a Collision/Reaction Cell

Luu,

Peters,

Lahoud

et al. 2024

Anal. Chem.

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We present a new approach to Cu isotopic measurements using a state-of-the-art Nu Sapphire multicollector inductively coupled plasma source mass spectrometer equipped with a collision/reaction cell (CRC-MC-ICPMS). We investigate the effects of Na doping and Cu concentration mismatch between bracketing standard and unknown samples and demonstrate the efficacy of introducing a He−H 2 gas mix into the CRC to efficiently eliminate the sample matrix-based 40 Ar 23 Na + isobaric interference on 63 Cu + . This capability is crucial when measuring samples with high Na/Cu ratios, such as some biological samples, which have significantly different chemical compositions compared to most geological samples. Moreover, considering the necessity of obtaining large data sets for biological samples to ensure reliable interpretations, the implementation of a CRC for mitigating the 40 Ar 23 Na + interference offers the advantage of minimizing the requirement for extensive Cu chemical separation procedure prior to Cu isotopic measurements. Our results demonstrate that the accurate determination of the δ 65 Cu values is achievable for samples with Na/Cu concentration ratios of up to ∼65, even when measuring 100 ppb Cu solutions (equivalent to a signal of ∼3.5−4 V total Cu). Furthermore, our results showcase a good short-term repeatability on δ 65 Cu for pure Cu standard solutions (NIST SRM 976 and Cu-IPGP), typically of 0.05‰ (2 SD) when measuring >50 ppb Cu solutions. Our long-term external reproducibility stands at approximately 0.07‰ (2 SD). This value accounts for the variable Cu concentrations analyzed across the different analytical sequences (from 10 to 100 ppb Cu solutions). To validate the robustness of our analytical method, we first conduct a comparison between data sets from mice brains processed twice through column chemistry using a Thermo Finnigan Neptune MC-ICPMS and a Nu Sapphire CRC-MC-ICPMS in CRC mode. This comparison serves to verify the reliability of our method for measuring Cu isotopic composition using the CRC on samples with a low Na/Cu ratio after traditional chemical processing. Then, we compare the data sets obtained for biological standards (tuna fish ERM-CE 464 (IRMM) and human serum Seronorm Trace Elements Serum L-1) processed either once, or twice, through column chemistry and demonstrate that the CRC allows accurate Cu isotopic measurements of the samples processed only once and therefore with a higher Na/Cu ratio.

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“…Wang et al . (2022a) developed an improved MC‐ICP‐MS method to determine Cu isotopes and applied this method to determine high‐precision Cu isotopic data for nineteen geological RMs, including igneous, sedimentary and metamorphic rocks, and chalcopyrite. The same research group also developed a technique for precise measurement of Fe isotopes and provided Fe isotopic data for twenty‐one geological RMs (Wang et al .…”

Section: Trends and Highlightsmentioning

confidence: 99%

Geostandards and Geoanalytical Research Bibliographic Review 2022

Weis,

Stoll,

Brettschneider

et al. 2023

Geostandard Geoanalytic Res

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This Geostandards and Geoanalytical Research Bibliographic Review 2022 presents an overview of a wide range of publications in 2022 focusing on the characterisation of new geoanalytical reference materials (RMs) as well as studies which published measurement results for established RMs. The development of highly accurate new methods and techniques leads to large new analytical data sets for RMs with improved accuracy and precision, which we present in this review.

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High-precision copper isotopic analysis using a Nu Sapphire MC-ICP-MS

Abstract: Here we present an analytical method for Cu isotopic measurement using standard-sample bracketing on a Nu Sapphire multi-collector inductively coupled plasma mass spectrometer. The effects of Cu concentration and HNO3...

Cited by 8 publications

References 42 publications

Performance of the double-Wien filter of the Neoma MC-ICPMS/MS with an application to copper stable isotope compositions

Performance of the double-Wien filter of the Neoma MC-ICPMS/MS with an application to copper stable isotope compositions

Copper Isotope Compositions Measured Using a Sapphire Dual Path MC-ICPMS with a Collision/Reaction Cell

Geostandards and Geoanalytical Research Bibliographic Review 2022

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