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Sequential Determination of Cd, Cu and Pb in Tea Leaves by Slurry Introduction to Thermospray Flame Furnace Atomic Absorption Spectrometry

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Abstract

A simple procedure for the sequential determination of Cd, Cu and Pb in tea leaves by slurry introduction to thermospray flame furnace atomic absorption spectrometry was developed. Detection limits were 0.05 mg kg−1 for Cd, 2.1 mg kg−1 for Cu and 0.68 mg kg−1 for Pb using 0.67 % (m/v) slurries (100 mg/15 mL).

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Acknowledgments

The authors thank the Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) for the financial support (grants 07/04515-4 and 09/09636-0) and to the fellowship to KM (grant 09/01447-3). The authors are also grateful to the Conselho Nacional de Desenvolvimento Tecnológico (CNPq) (grant 304060/2009-7).

Conflict of Interest

Kelber Miranda declares that he has no conflict of interest. Edenir R. Pereira-Filho declares that he has no conflict of interest. This article does not contain any studies with human or animal subjects.

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Authors and Affiliations

  1. Departamento de Química Analítica, Universidade Estadual Paulista, Caixa Postal 355, CEP 14801-970, Araraquara, SP, Brazil

    Kelber Miranda

  2. Universidade Federal de São Carlos, Centro de Ciências Exatas e de Tecnologia, Departamento de Química, Grupo de Análise Instrumental Aplicada, Rodovia Washington Luiz, km 235, Caixa Postal 676, CEP 13565-905, São Carlos, SP, Brazil

    Edenir R. Pereira-Filho

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  1. Kelber Miranda
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  2. Edenir R. Pereira-Filho
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Correspondence to Kelber Miranda.

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Miranda, K., Pereira-Filho, E.R. Sequential Determination of Cd, Cu and Pb in Tea Leaves by Slurry Introduction to Thermospray Flame Furnace Atomic Absorption Spectrometry. Food Anal. Methods 6, 1607–1610 (2013). https://doi.org/10.1007/s12161-013-9574-z

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  • DOI: https://doi.org/10.1007/s12161-013-9574-z

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