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Analytical and Bioanalytical Chemistry

, Volume 409, Issue 23, pp 5481–5490 | Cite as

Determination of As, Se, and Hg in fuel samples by in-chamber chemical vapor generation ICP OES using a Flow Blurring® multinebulizer

  • Miriam García
  • Miguel Ángel AguirreEmail author
  • Antonio CanalsEmail author
Research Paper

Abstract

In this work, a new and simple analytical methodology based on in-chamber chemical vapor generation has been developed for the spectrochemical analysis of commercial fuel samples. A multiple nebulizer with three nebulization units has been employed for this purpose: One unit was used for sample introduction, while the other two were used for the necessary reagent introduction. In this way, the aerosols were mixed inside the spray chamber. Through this method, analyte transport and, therefore, sensitivity are improved in inductively coupled plasma-optical emission spectrometry. The factors (i.e., variables), influencing chemical vapor generation, have been optimized using a multivariate approach. Under optimum chemical vapor generation conditions ([NaBH4] = 1.39%, [HCl] = 2.97 M, total liquid flow = 936 μL min−1), the proposed sample introduction system allowed the determination of arsenic, selenium, and mercury up to 5 μg g−1 with a limit of detection of 25, 140, and 13 μg kg−1, respectively. Analyzing spiked commercial fuel samples, recovery values obtained were between 96 and 113%, and expanded uncertainty values ranged from 4 to 16%. The most striking practical conclusion of this investigation is that no carbon deposit appears on the plasma torch after extended periods of working.

Graphical abstract

A new and simple analytical methodology based on in-chamber chemical vapor generation has been developed for the spectrochemical analysis of commercial fuel samples in ICP OES

Keywords

ICP OES Flow Blurring multiple nebulizer Multinebulization Fuels Trace elements In-chamber chemical vapor generation 

Notes

Acknowledgments

The authors would like to thank the Spanish Ministry of Science and Innovation (project n. CTQ2011-23968), the Spanish Ministry of Economy, Industry and Competitiveness (project n. CTQ2016-79991-R) (AEI/FEDER, UE) and Generalitat Valenciana (Spain) (project n. PROMETEO/2013/038) for the financial support, and Agilent Technologies Inc. for the loan of the ICP OES spectrometer.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflicts of interest.

Supplementary material

216_2017_484_MOESM1_ESM.pdf (3 mb)
ESM 1 (PDF 3110 kb).

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Copyright information

© Springer-Verlag GmbH Germany 2017

Authors and Affiliations

  1. 1.Department of Analytical Chemistry and Food Science and University Institute of Materials, Faculty of ScienceUniversity of AlicanteAlicanteSpain

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