Accurate Determination of Trace Molybdenum in Drinking Water by Isotope Dilution Inductively Coupled Plasma Mass Spectrometry

Panshu SONG; Jun WANG; Jingbo CHAO; Qian WANG; Bing WU

doi:10.2116/analsci.19N010

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Accurate Determination of Trace Molybdenum in Drinking Water by Isotope Dilution Inductively Coupled Plasma Mass Spectrometry

Panshu SONG, Jun WANG, Jingbo CHAO, Qian WANG, Bing WU

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Keywords: Trace molybdenum, accurate determination, isotope dilution method, drinking water, uncertainty evaluation

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Supplementary material

2019 Volume 35 Issue 7 Pages 807-809

DOI https://doi.org/10.2116/analsci.19N010

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Abstract

A method for accurate and precise determination of trace molybdenum in drinking water by isotope dilution inductively coupled plasma mass spectrometry was developed, given the concentrations of Mo in drinking-water samples from Chaoyang and Changping districts of Beijing (China) as 1.017 ± 0.008 and 1.033 ± 0.007 μg kg⁻¹ (k = 2), respectively. Special care was taken for the validation of the proposed ID-ICPMS method using CRM 7203-a, a certified reference material for elemental analysis of tap water.

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