SIM.QM-S12的最终报告：天然水中微量元素的补充比较

IF 2.1 3区工程技术 Q2 INSTRUMENTS & INSTRUMENTATION

Metrologia Pub Date : 2024-01-01 DOI:10.1088/0026-1394/61/1a/08002

Patricia Grinberg, K. Nadeau, Lu Yang, Zoltán Mester, Wai-hong Fung, Chun-wai Tse, J. Merrick, I. White, Isaac Schipp, Osvaldo Acosta, M. Puelles, José Luis Gonzales Quino, R. C. D. Sena, M. Almeida, E. S. Dutra, Chao Jingbo, Dong Lijie, E. Kakoulides, G. Karanikolopoulos, E. Stathoudaki, S. Tripathy, D. D. Toppo, Jyoti Pokhariyal, Anuj Krishna, Chinky Vinod, Lakhan Taneja, C. Elishian, I. Komalasari, N. Baharom, Haslina Binti Abdul Kadir, Elmer Carrasco Solis, C. Uribe, A. Junsay, Christian D Laurio, Johnester D Maniego, Clarissa J Gatchalian, Jan-Ervin C Guerrero, Michał Strzelec, A. Bojanowska-Czajka, Beata Warzywoda, R. Jaćimović, T. Zuliani, Pranee Phukphatthanachai, Nunnapus Laitip, U. Thiengmanee, Romina Napoli, E. Ferreira

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引用次数: 0

摘要

SIM补充比对SIM.QM-S12天然水中痕量元素的目的是评估和展示SIM成员（或其他地区）的国家计量机构（NMI）和指定机构（DI）准确测定天然水中痕量元素µg/kg水平的分析能力。需要提供成功参与正式、相关国际比对的证据，以证明国家计量院和指定机构提出的校准和测量能力声明（CMC）。17 个国家监测机构和指定机构参加了比对。要求参加者对添加了砷、镉、铅和锑元素的天然地下矿泉水中砷、镉、铅和锑的质量分数（以 µg/kg 表示）进行评估。参与者使用了多种仪器技术进行测定，包括电感耦合等离子体质谱法 (ICP-MS)、同位素稀释 ICP-MS (ID-ICP-MS)、电感耦合等离子体光发射光谱法 (ICP-OES)、电热原子吸收光谱法 (ETAAS) 和氢化物发生火焰原子吸收光谱法 (HG-FAAS)。根据 IAWG 自 2023 年 6 月 30 日起在比对报告中使用 NIST 决策树的指南，使用 NIST 决策树为拟议的测量值分配 SCRV 估计值，并计算每个国家测量标准的等效度。成功参与 SIM.QM-S12 展示了测定水基质中元素的测量方法。考虑到 IAWG 核心能力矩阵，该材料属于名为 "水/水溶液 "的矩阵挑战，与 CCQM 物质数量类别淡水相对应，因此将支持质量分数水平低于 50 µg/kg 的金属和半金属（砷和锑测量）以及质量分数水平低于 50 µg/kg（汞除外）的过渡元素（镉和铅测量）的 CMC。要阅读本文正文，请点击最终报告。请注意，该文本是出现在 BIPM 关键比对数据库 https://www.bipm.org/kcdb/ 附录 B 中的文本。根据 CIPM 互认安排 (CIPM MRA) 的规定，最终报告已通过同行评审，并批准由 CCQM 出版。

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Final report for SIM.QM-S12: supplementary comparison for trace elements in natural water

The SIM Supplementary Comparison SIM.QM-S12 for Trace Elements in Natural Water was undertaken to assess and demonstrate the analytical capabilities of national metrology institutes (NMIs) and designated institutes (DIs) of SIM members (or other regions) for the accurate determination of trace elements in natural water at µg/kg levels. Evidence of successful participation in formal, relevant international comparisons is needed to document calibration and measurement capability claims (CMCs) made by NMIs and DIs. Seventeen NMIs and DIs participated. Participants were requested to evaluate the mass fractions, expressed in µg/kg, of arsenic, cadmium, lead and antimony in a natural mineral groundwater that was spiked with the respective elements. A variety of instrumental techniques including inductively coupled plasma mass spectrometry (ICP-MS), isotope dilution ICP-MS (ID-ICP-MS), inductively coupled plasma optical emission spectrometry (ICP-OES), electrothermal atomic absorption spectrometry (ETAAS) and hydride generation flame atomic absorption spectrometry (HG-FAAS) were used by the participants for the determination. The NIST decision tree was used to assign the SCRV estimate for the proposed measurands and to calculate the degrees of equivalence of each national measurement standard following the IAWG Guidance on Using NIST Decision Tree for Comparison Reporting from 30 June 2023. Successful participation in SIM.QM-S12 demonstrates measurement for determination of elements in water matrices. Considering the IAWG Core Capability Matrix, this material falls into the matrix challenge called "Water/aqueous", which corresponds to the CCQM amount-of-substance category fresh water, and so will support CMCs for the metalloids and semi-metals at mass fraction levels below 50 µg/kg (As and Sb measurements) and transition elements at mass fraction levels below 50 µg/kg (except Hg) (for Cd and Pb measurements). To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database https://www.bipm.org/kcdb/. The final report has been peer-reviewed and approved for publication by the CCQM, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).

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来源期刊

Metrologia 工程技术-物理：应用

CiteScore

2.80

自引率

25.00%

发文量

137

审稿时长

12 months

期刊介绍： Published 6 times per year, Metrologia covers the fundamentals of measurements, particularly those dealing with the seven base units of the International System of Units (metre, kilogram, second, ampere, kelvin, candela, mole) or proposals to replace them. The journal also publishes papers that contribute to the solution of difficult measurement problems and improve the accuracy of derived units and constants that are of fundamental importance to physics. In addition to regular papers, the journal publishes review articles, issues devoted to single topics of timely interest and occasional conference proceedings. Letters to the Editor and Short Communications (generally three pages or less) are also considered.