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Development and Validation of a Method for the Determination of Fatty Acid Methyl Ester Contents in Tung Biodiesel and Blends

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Journal of the American Oil Chemists' Society

Abstract

The aim of this study was to develop and validate a method for the analysis of fatty acid methyl ester (FAMEs) content in tung biodiesel and blends with soybean biodiesel. The limits of detection (LOD) and quantification (LOQ), linearity, robustness, accuracy and precision were evaluated by using gas chromatography with mass spectrometry detection and impact electron ionization. The analytical curves showed correlation coefficients values higher than 0.99. The LOD and LOQ were 0.78 and 2.5 mg L−1 for all FAMEs, respectively. The values of accuracy were between 86 and 117%, with relative standard deviation lower than 8%. The method was applied to tung biodiesel and tung and soybean biodiesel blends in the following proportions: 15:85, 20:80, 25:75 (%v/v). All of them showed good performance. Since the method was also applied to soybean biodiesel, the efficiency of the method for the analysis of both pure tung biodiesel and blends with different raw materials was confirmed and the robustness of the method was evidenced.

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Acknowledgments

The authors thank the Post-graduate Program in Technological and Environmental Chemistry at the Universidade Federal do Rio Grande, Empresa Brasileira de Pesquisa Agropecuária, Conselho Nacional de Desenvolvimento Científico e Tecnológico, Financiadora de Estudos e Projetos, Petróleo Brasileiro S/A and Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul for the financial support.

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Authors and Affiliations

  1. Programa de Pós-Graduação em Química Tecnológica e Ambiental, Escola de Química e Alimentos, Universidade Federal do Rio Grande FURG, Av Itália, km 8 s/n, Rio Grande, RS, 96201-900, Brazil

    Viviane L. Pardo, Cássia A. M. Fagundes, Sergiane S. Caldas, Márcia H. Kurz, Rosilene M. Clementin, Marcelo G. M. D’Oca & Ednei G. Primel

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  1. Viviane L. Pardo
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  2. Cássia A. M. Fagundes
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  3. Sergiane S. Caldas
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  4. Márcia H. Kurz
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  5. Rosilene M. Clementin
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  6. Marcelo G. M. D’Oca
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  7. Ednei G. Primel
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Correspondence to Ednei G. Primel.

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Pardo, V.L., Fagundes, C.A.M., Caldas, S.S. et al. Development and Validation of a Method for the Determination of Fatty Acid Methyl Ester Contents in Tung Biodiesel and Blends. J Am Oil Chem Soc 89, 631–637 (2012). https://doi.org/10.1007/s11746-011-1948-z

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  • DOI: https://doi.org/10.1007/s11746-011-1948-z

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