ICP-MS测定陶瓷片密封水嘴浸泡液中镉含量的不确定度分析

doi:10.3969/j.issn.1000-1158.2018.06.30

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摘要利用ICP-MS法测定陶瓷片密封水嘴浸泡液中镉含量,依据JJF 1059.1—2012《测量不确定度评定与表示》的要求,建立数学模型,对其不确定度来源进行分析计算,计算合成标准不确定度与扩展不确定度。通过分析计算表明:当浸泡液中镉含量为7.622μg/L、取置信概率为95%时,其相对不确定度为3.2%;标准曲线的拟合对不确定的影响最大, 标准浓液的配置对不确定度的影响最小。

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	陈仁杰
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	谢美梅

关键词 ：计量学, ICP-MS, 陶瓷片密封水嘴, 浸泡液, 镉, 不确定度分析

Abstract：Cadmium in immersion solution of ceramic cartridge faucets was measured by ICP-MS. Established the mathematical model, according to JJF 1059.1—2012 "Evaluation and Expression of Uncertainty in Measurement". Analyzed and assessed the sources of uncertainty affecting factors, calculated the combined uncertainty and expanded uncertainty. The result showed that: when the Cadmium in immersion solution is 7.622μg/L and the confidence probability is 95%, the relative uncertainty is 3.2%;the greatest affecting factor is the standard curve fitting and the least affecting factor is the preparing of standard solution.

Key words： metrology ICP-MS ceramic cartridge faucets immersion solution cadmium evaluation of uncertainty

收稿日期: 2018-04-26 发布日期: 2018-11-06

PACS:

TB99

通讯作者: 陈仁杰 E-mail: 350000162@qq.com

作者简介: 陈仁杰（1985-）,男,福建安溪人,工程师,主要从事建材产品质量检测与实验室管理工作。350000162@qq.com

引用本文:

陈仁杰,黄婷婷,吕良勇,谢美梅. ICP-MS测定陶瓷片密封水嘴浸泡液中镉含量的不确定度分析[J]. 计量学报, 2018, 39(6): 914-917.
CHEN Ren-jie,HUANG Ting-ting,LV Liang-yong, XIE Mei-mei. Evaluation of Uncertainty in Measurement of Cadmium in Immersion Solution of Ceramic Cartridge Faucets by ICP-MS. Acta Metrologica Sinica, 2018, 39(6): 914-917.

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http://jlxb.china-csm.org:81/Jwk_jlxb/CN/10.3969/j.issn.1000-1158.2018.06.30 或 http://jlxb.china-csm.org:81/Jwk_jlxb/CN/Y2018/V39/I6/914