Copper, Zinc and Lead Isotopic Delta Values and Isotope Ratios of Various Geological and Biological Reference Materials,Geostandards and Geoanalytical Research

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Copper, Zinc and Lead Isotopic Delta Values and Isotope Ratios of Various Geological and Biological Reference Materials
Geostandards and Geoanalytical Research ( IF 2.7 ) Pub Date : 2021-03-11 , DOI: 10.1111/ggr.12379
Hyeryeong Jeong _{1,

2} , Kongtae Ra _{1,

2} , Jin Young Choi ₁

Affiliation

Copper, Zn and Pb isotope ratios are important tracers for understanding geological and biological processes. We present optimised column separation methods using an anion exchange resin for Cu and Zn, and a Pb-specific resin for Pb, and provide Cu, Zn and Pb isotope data for thirty-three commercially available geological and biological reference materials (RMs) using MC-ICP-MS. Our measurement procedures can be applied to various environmental samples. The Cu, Zn and Pb yields were higher than 99.2%, and isotopic fractionation did not occur during column separation. Copper and Zn delta values of AGV-2, BCR-2, BIR-1a, BHVO-2, GSP-2, NOD-A-1, NOD-P-1, DOLT-4, BCR-414, BCR-279 and NIST SRM 1573a were in good agreement with previously reported values. The intermediate measurement precision for Cu and Zn delta values was better than ± 0.02‰ (2s). The δ⁶⁵Cu_NIST976, δ⁶⁶Zn_JMC and ²⁰⁶Pb/²⁰⁷Pb values determined in this study ranged from −0.19 to +0.73‰, −0.96 to +1.00‰ and 1.1172 to 1.2263, respectively. The δ⁶⁶Zn_JMC variability (Δ⁶⁶Zn_max–min) in this study was relatively larger than that of δ⁶⁵Cu_NIST976 variability (Δ⁶⁵Cu_max–min). A combination of Cu, Zn and Pb isotopes can be used as potential environmental tracers to track the origins of these elements in the environment as well as to understand their influence on organisms.

中文翻译：

各种地质和生物参考材料的铜、锌和铅同位素 Delta 值和同位素比

铜、锌和铅同位素比率是了解地质和生物过程的重要示踪剂。我们提出了使用阴离子交换树脂检测 Cu 和 Zn，使用 Pb 特定树脂检测 Pb 的优化柱分离方法，并使用 MC 提供了 33 种市售地质和生物参考材料 (RM) 的 Cu、Zn 和 Pb 同位素数据-ICP-MS。我们的测量程序可应用于各种环境样品。Cu、Zn 和 Pb 的产率高于 99.2%，并且在色谱柱分离过程中未发生同位素分馏。AGV-2、BCR-2、BIR-1a、BHVO-2、GSP-2、NOD-A-1、NOD-P-1、DOLT-4、BCR-414、BCR-279和NIST SRM 1573a 与之前报告的值非常吻合。Cu和Zn delta值的中间测量精度优于±0.02‰（2s )。本研究中确定的 δ ⁶⁵ Cu _NIST976、δ ⁶⁶ Zn _JMC和²⁰⁶ Pb/ ²⁰⁷ Pb 值的范围分别为 -0.19 至 +0.73‰、-0.96 至 +1.00‰ 和 1.1172 至 1.2263。本研究中的 δ ⁶⁶ Zn _JMC变异性（Δ ⁶⁶ Zn _max-min）相对大于 δ ⁶⁵ Cu _NIST976变异性（Δ ⁶⁵ Cu _max-min）。Cu、Zn 和 Pb 同位素的组合可用作潜在的环境示踪剂，以追踪这些元素在环境中的来源并了解它们对生物的影响。

更新日期：2021-03-11

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