The Isotrace CNRS workgroup in collaboration with National Research Council of Canada has characterized a number of trace element mass fractions and isotope ratios currently not certified in AQUA-1 natural drinking water reference material (NRC Canada). This survey further expands the use of this material as a tool for environmental quality control, method validation, and method development tool for the international community. Simultaneously, the SLRS-6 river water was analyzed as quality control and also in order to compare both water characteristics, which were sampled in the same area but having undergone different treatment. Mass fractions for B, Cs, Li, Ga, Ge, Hf, Nb, P, Rb, Rh, Re, S, Sc, Se, Si, Sn, Th, Ti, Tl, W, Y, Zr, REEs, and six isotopic ratios are proposed for Sr and Pb. Measurements were mostly performed using ICP-MS with various calibration approaches. The results are reported as consensus or indicative values depending on the number of available datasets, with their associated uncertainties.

Graphical abstract

中文翻译：

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协同测定 AQUA-1 饮用水标准物质中的微量元素质量分数和同位素比

Isotrace CNRS 工作组与加拿大国家研究委员会合作，对目前未在 AQUA-1 天然饮用水参考材料（加拿大 NRC）中认证的许多微量元素质量分数和同位素比率进行了表征。该调查进一步扩大了该材料作为国际社会环境质量控制、方法验证和方法开发工具的用途。同时，对 SLRS-6 河水进行质量控制分析，也为了比较在同一地区取样但经过不同处理的两种水的特性。B、Cs、Li、Ga、Ge、Hf、Nb、P、Rb、Rh、Re、S、Sc、Se、Si、Sn、Th、Ti、Tl、W、Y、Zr、REE 和提出了 Sr 和 Pb 的六种同位素比率。测量主要使用 ICP-MS 和各种校准方法进行。根据可用数据集的数量及其相关的不确定性，将结果报告为一致值或指示值。

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