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The δ60/58Ni Values of Twenty‐Six Selected Geological Reference Materials
Geostandards and Geoanalytical Research ( IF 2.7 ) Pub Date : 2020-03-17 , DOI: 10.1111/ggr.12321
Weihan Li 1 , Jian‐Ming Zhu 1 , Decan Tan 2, 3 , Guilin Han 1 , Zhouqiao Zhao 4 , Guangliang Wu 1
Affiliation  

The high‐precision δ60/58Ni values of twenty‐six geological reference materials, including igneous rocks, sedimentary rocks, stream sediments, soils and plants are reported. The δ60/58Ni values of all samples were determined by double‐spike MC‐ICP‐MS (Nu Plasma III). Isotope standard solution (NIST SRM 986) and geological reference materials (BHVO‐2, BCR‐2, JP‐1, PCC‐1, etc.) were used to evaluate the measurement bias and intermediate precision over a period of six months. Our results show that the intermediate precision of Ni isotope determination was 0.05‰ (2s , n  = 69) for spiked NIST SRM 986 and typically 0.06‰ for actual samples, and the δ60/58Ni NIST SRM 986 values were in excellent agreement with previous studies. Eighteen high‐precision Ni isotope ratios of geological reference materials are first reported here, and their δ60/58Ni values varied from −0.27‰ to 0.52‰, with a mean of 0.13 ± 0.34‰ (2s , n  = 18). Additionally, SGR‐1b (0.56 ± 0.04‰, 2s ), GSS‐1 (−0.27 ± 0.06‰, 2s ), GSS‐7 (−0.11 ± 0.01‰, 2s ), GSD‐10 (0.46 ± 0.06‰, 2s ) and GSB‐12 (0.52 ± 0.06‰, 2s ) could potentially serve as candidate reference materials for Ni isotope fractionation and comparison of Ni isotopic compositions among different laboratories.

中文翻译:

26种地质参考物质的δ60/ 58Ni值

报告了包括火成岩,沉积岩,河流沉积物,土壤和植物在内的26种地质参考材料的高精度δ60/58 Ni值。该δ 60/58所有样品的镍值通过双穗MC-ICP-MS(女等离子体III)来确定。同位素标准溶液(NIST SRM 986)和地质参考材料(BHVO-2,BCR-2,JP-1,PCC-1等)用于评估六个月内的测量偏差和中间精度。我们的结果表明, 对于加标NIST SRM 986 ,Ni同位素测定的中间精度为0.05‰(2 sn = 69),对于实际样品,δ60/58 Ni NIST SRM 986通常为0.06‰。值与以前的研究非常吻合。本文首次报道了18个地质参考材料的高精度Ni同位素比,其δ60/58 Ni值在-0.27‰至0.52‰之间变化,平均值为0.13±0.34‰(2 sn  = 18)。此外,SGR-1b(0.56±0.04‰,2 s),GSS-1(-0.27±0.06‰,2 s),GSS-7(-0.11±0.01‰,2 s),GSD-10(0.46±0.06) ‰,2 s)和GSB-12(0.52±0.06‰,2 s)可能用作不同实验室之间Ni同位素分馏和Ni同位素组成比较的候选参考材料。
更新日期:2020-03-17
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