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Molecules 2019, 24(4), 668; https://doi.org/10.3390/molecules24040668

Study on Speciation of As, Cr, and Sb in Bottled Flavored Drinking Water Samples Using Advanced Analytical Techniques IEC/SEC-HPLC/ICP-DRC-MS and ESI-MS/MS

1
Department of Trace Element Analysis by Spectroscopy Method, Faculty of Chemistry, Adam Mickiewicz University in Poznan, 89b Umultowska Street, 61-614 Poznan, Poland
2
Institute of Plant Genetics, Polish Academy of Sciences, 34 Strzeszyńska street, 60-479 Poznan, Poland
*
Author to whom correspondence should be addressed.
Received: 15 January 2019 / Revised: 11 February 2019 / Accepted: 12 February 2019 / Published: 14 February 2019
(This article belongs to the Special Issue Recent Advances in Studies of Food and Beverages)
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Abstract

The main aim of the research was to develop a complementary analytical approach consisting of bespoke speciation analysis and non-targeted speciation analysis of As, Sb, and Cr in flavored bottled drinking water samples using HPLC/ICP-DRC-MS and ESI-MS/MS. The scope of two previously developed analytical procedures, (1) multielemental speciation procedure for AsIII, AsV, CrVI, SbIII, and SbV analysis and (2) arsenic speciation procedure for AsB, AsIII, DMA, MMA, and AsV quantification, was extended to the analysis of a new sample type in terms of bespoke speciation analysis. As for the non-targeted speciation, analysis size exclusion chromatography was used with ICP-MS and a complementary technique, ESI-MS/MS, was used for the organic species of As, Sb, and Cr screening. Full validation of procedures 1 and 2 was conducted. Procedure 1 and 2 were characterized with precision values in the range from 2.5% to 5.5% and from 3.6% to 7.2%, respectively. Obtained recoveries ranged from 97% to 106% and from 99% to 106% for procedures 1 and 2, respectively. Expanded uncertainties calculated for procedures 1 and 2 ranged from 6.1% to 9.4% and from 7.4% to 9.9%, respectively. The applicability of the proposed procedures was tested on bottled drinking water samples. Results for the real samples in procedure 1 were in the range from 0.286 ± 0.027 [μg L−1] to 0.414 ± 0.039 [μg L−1] for AsIII, from 0.900 ± 0.083 [μg L−1] to 3.26 ± 0.30 [μg L−1] for AsV, and from 0.201 ± 0.012 [μg L−1] to 0.524 ± 0.032 [μg L−1] for SbV. CrVI and SbIII were not detected in any sample. As for procedure 2, results were in the range from 0.0541 ± 0.0053 [μg L−1] to 0.554 ± 0.054 [μg L−1] for AsB. Results for AsIII and AsV obtained with procedure 2 were in good accordance with results obtained with procedure 1. DMA and MMA were not detected in any sample. View Full-Text
Keywords: high performance liquid chromatography coupled with inductively coupled plasma mass spectrometry; electrospray ionization mass spectrometry; speciation analysis; bottled flavored drinking water samples; method validation high performance liquid chromatography coupled with inductively coupled plasma mass spectrometry; electrospray ionization mass spectrometry; speciation analysis; bottled flavored drinking water samples; method validation
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Lorenc, W.; Markiewicz, B.; Kruszka, D.; Kachlicki, P.; Barałkiewicz, D. Study on Speciation of As, Cr, and Sb in Bottled Flavored Drinking Water Samples Using Advanced Analytical Techniques IEC/SEC-HPLC/ICP-DRC-MS and ESI-MS/MS. Molecules 2019, 24, 668.

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