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Feasibility of using solid sampling graphite furnace atomic absorption spectrometry for preparation of spiked filter papers with Cu and Zn as standards for direct solid analysis

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Abstract

An approach was developed for the preparation of cryogenic ground spiked filter papers with Cu and Zn for use as synthetic calibrating standards for direct solid microanalysis. Solid sampling graphite furnace atomic absorption spectrometry was used to evaluate the microhomogeneity and to check the applicability of the synthetic calibrating standards for the direct determination of Cu and Zn in vegetable certified reference materials. The found concentrations presented no statistical differences at the 95% confidence level. The homogeneity factors ranged from 2.7 to 4.2 for Cu and from 6.4 to 11.5 for Zn.

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Acknowledgments

The authors are grateful to Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) for finacial support and for a fellowship to CSN; to Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) for financial support and researchship to PVO and FJK; and to Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) for a fellowship to DPI.

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Authors and Affiliations

  1. Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, 09210–170, Santo André, SP, Brazil

    Cassiana S. Nomura

  2. Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo, 05513-970, São Paulo, SP, Brazil

    Danielle P. Intima & Pedro V. Oliveira

  3. Centro de Energia Nuclear na Agricultura, Universidade de São Paulo, 13400-970, Piracicaba, SP, Brazil

    Iolanda A. Ruffini & Francisco J. Krug

Authors
  1. Cassiana S. Nomura
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  2. Danielle P. Intima
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  3. Pedro V. Oliveira
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  4. Iolanda A. Ruffini
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  5. Francisco J. Krug
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Correspondence to Cassiana S. Nomura.

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Nomura, C.S., Intima, D.P., Oliveira, P.V. et al. Feasibility of using solid sampling graphite furnace atomic absorption spectrometry for preparation of spiked filter papers with Cu and Zn as standards for direct solid analysis. Anal Bioanal Chem 391, 1135–1137 (2008). https://doi.org/10.1007/s00216-008-1975-2

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  • DOI: https://doi.org/10.1007/s00216-008-1975-2

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