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Certified reference material of volatile organic compounds for environmental analysis: BTEX in methanol

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Abstract

The Brazilian Metrology Institute (National Institute of Metrology, Quality, and Technology, Inmetro) has been developing a certified reference material (CRM) of the volatile organic compounds benzene; toluene; ethylbenzene; and ortho, meta, and para-xylenes (BTEX) in methanol, to ensure quality control for environmental-analysis measurements. The objective of this paper is to present the results of certification studies: uncertainty estimates related to characterization, a homogeneity study, and a stability study on a single lot of CRM composed of BTEX in methanol. The method used analysis of variance (ANOVA), a statistical tool, to evaluate the homogeneity and stability of the BTEX CRM, which complies with ISO Guide 30 series. The homogeneity and stability of the BTEX CRM was confirmed for all analytes and their respective properties. All the procedures used in this study complied with ISO GUIDE 34, ISO GUIDE 35, and the guide to the expression of uncertainty of measurement (GUM).

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References

  1. Cervera MI, Beltran J, Lopez FJ, Hernandez F (2011) Determination of volatile organic compounds in water by headspace solid-phase microextraction gas chromatography coupled to tandem mass spectrometry with triple quadrupole analyzer. Anal Chim Acta 704(1–2):87–97. doi:10.1016/j.aca.2011.08.012

    Article  CAS  Google Scholar 

  2. Aguilera-Herrador E, Lucena R, Cárdenas S, Valcárcel M (2008) Ionic liquid-based single-drop microextraction/gas chromatographic/mass spectrometric determination of benzene, toluene, ethylbenzene and xylene isomers in waters. J Chromatogr A 1201(1):106–111. doi:10.1016/j.chroma.2008.06.010

    Article  CAS  Google Scholar 

  3. ABNT ISO IEC 17025 (2005) General requirements for the competence of testing and calibration laboratories, International Organization for Standardization

  4. ABNT ISO GUIA 35 (2012) Reference materials - General and statistical principles for certification

  5. De Bièvre P (2000) Traceability of (values carried by) reference materials. Accred Qual Assur 5(6):224–230. doi:10.1007/s007690050452

    Article  Google Scholar 

  6. GUM (1995) Guide to the expression of uncertainty of measurement. International Organization for Standardization

  7. EURACHEM/CITAC (2012) Guide quantifying uncertainty in analytical measurement - Third Edition

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Acknowledgments

The authors are grateful for financial support from CNPq/PROMETRO and FINEP.

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Authors and Affiliations

  1. National Institute of Metrology, Quality and Technology -INMETRO, Division of Chemical Metrology, 25250-020, Duque de Caxias, RJ, Brazil

    Laura A. Neves, Renato R. R. Almeida, Eliane P. Rego, Janaína Marques Rodrigues, Lucas Junqueira de Carvalho & Ana Letícia de M. Goulart

  2. Organic Analysis Laboratory, National Institute of Metrology, Quality and Technology -INMETRO, Division of Chemical Metrology, 25250-020, Duque de Caxias, RJ, Brazil

    Laura A. Neves, Renato R. R. Almeida, Eliane P. Rego, Lucas Junqueira de Carvalho & Ana Letícia de M. Goulart

  3. Laboratory of Green Technologies - GREENTEC, School of Chemistry, Federal University of Rio de Janeiro (UFRJ), Technology Center, 21941-909, Rio de Janeiro, RJ, Brazil

    Laura A. Neves

Authors
  1. Laura A. Neves
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  2. Renato R. R. Almeida
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  3. Eliane P. Rego
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  4. Janaína Marques Rodrigues
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  5. Lucas Junqueira de Carvalho
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  6. Ana Letícia de M. Goulart
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Corresponding author

Correspondence to Laura A. Neves.

Additional information

Published in the topical collection Reference Materials for Chemical Analysis with guest editors Hendrik Emons and Stephen A. Wise.

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Neves, L.A., Almeida, R.R.R., Rego, E.P. et al. Certified reference material of volatile organic compounds for environmental analysis: BTEX in methanol. Anal Bioanal Chem 407, 3225–3229 (2015). https://doi.org/10.1007/s00216-014-8314-6

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  • DOI: https://doi.org/10.1007/s00216-014-8314-6

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