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Título: | Development of a New High-Performance Liquid Chromatography–Electrospray Ionization Time-of-Flight Mass Spectrometry Method for the Determination of Low Molecular Mass Organic Acids in Plant Tissue Extracts |
Autor: | Rellán-Álvarez, Rubén CSIC ORCID; López-Gomollón, Sara CSIC ORCID; Abadía Bayona, Javier CSIC ORCID ; Álvarez-Fernández, Ana CSIC ORCID | Palabras clave: | Carboxylates mass spectrometry; organic acids plant tissues |
Fecha de publicación: | jul-2011 | Editor: | American Chemical Society | Citación: | Rellan-Alvarez R, Lopez-Gomollon S, Abadia J, Alvarez-Fernandez A. Development of a New High-Performance Liquid Chromatography–Electrospray Ionization Time-of-Flight Mass Spectrometry Method for the Determination of Low Molecular Mass Organic Acids in Plant Tissue Extracts. Journal of agricultural and food chemistry 59 (13): 6864-6870 (2011) | Resumen: | A liquid chromatography–electrospray ionization time-of-flight mass spectrometry method has been developed for the direct and simultaneous determination of 10 low molecular mass organic acids in different plant tissue extracts. The method does not include a derivatization step. Quantification was accomplished using 13C-labeled malic and succinic acids as internal standards. Good limits of detection (0.05–1.27 pmol) were obtained for malic, 2-oxoglutaric, succinic, quinic, shikimic, cis-aconitic, and citric acids, whereas for oxalic, ascorbic, and fumaric acids limits of detection were 255, 25, and 11 pmol, respectively. Repeatability values for the retention time and peak area were <5%, with the exception of ascorbic acid. Analyte recovery was between 92% and 110% in most cases, with the exception of oxalic (39–108%), 2-oxoglutaric (44–69%), and ascorbic (22–86%) acids, which may require specific extraction procedures and use of the corresponding 13C-labeled organic acid as internal standards to improve accuracy. The method was applied to three types of plant materials: sugar beet leaf extracts, tomato xylem sap, and commercial orange juice. | Descripción: | 7 Pag., 5 Tabl., 2 Fig. | Versión del editor: | http://dx.doi.org/10.1021/jf200482a | URI: | http://hdl.handle.net/10261/38231 | DOI: | 10.1021/jf200482a | ISSN: | 0021-8561 | E-ISSN: | 1520-5118 |
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