Citas bibligráficas
Palacios, A., Campos, C. (2010). Determinación por HPLC de residuos de insecticida órganofosforado (Methamidophos) en tomates comercializados en Lima-Perú [Tesis, Universidad Nacional Mayor de San Marcos]. https://hdl.handle.net/20.500.12672/1611
Palacios, A., Campos, C. Determinación por HPLC de residuos de insecticida órganofosforado (Methamidophos) en tomates comercializados en Lima-Perú [Tesis]. PE: Universidad Nacional Mayor de San Marcos; 2010. https://hdl.handle.net/20.500.12672/1611
@misc{renati/483248,
title = "Determinación por HPLC de residuos de insecticida órganofosforado (Methamidophos) en tomates comercializados en Lima-Perú",
author = "Campos Chávez, Cristian",
publisher = "Universidad Nacional Mayor de San Marcos",
year = "2010"
}
In the present study was conducted toxicological analysis for the identification and quantification of the organophosphate insecticide METHAMIDOPHOS residue in 25 samples of tomatoes, three wholesale markets (La Parada, 3 de Febrero and Manzanilla) and two retail markets (No. 1- San Juan de Lurigancho and Ceres – Ate) , all located in the department of Lima. Qualitative identification analysis was performed by Thin Layer Chromatography (TLC) using the Rf and High-Resolution Liquid Chromatography (HPLC) using the retention times. Quantitative analysis was performed by high resolution liquid chromatography (HPLC) using the integrated areas of peaks in the chromatograms obtained. We determined the presence of Methamidophos in all samples. Of the 25 samples tested only one sample (4%) belonging to the wholesale market 3 de Febrero present a maximum concentration of 1.0369 ppm of Methamidophos exceeding the Maximum Residual Limit (MRL) for Methamidophos on tomatoes as Codex Alimentarius is 1.0 ppm. Key Words: tomato, insecticide, organophosphates, Methamidophos, MRL, TLC, HPLC.
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