Determination of 2,4-D in aqueous solution by neutron activation analysis |
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| Authors: | V Martínez-Miranda S Martínez-Gallegos M V Esteller S Bulbulian |
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| Institution: | (1) A.P. 18-1027, Col. Escandón, Delegación Miguel Hidalgo, Instituto Nacional de Investigaciones Nucleares, C. P. 11801 Mexico, D.F., Mexico;(2) Centro Interamericano de Recursos del Agua, Facultad de Ingeniería-Universidad Autónoma del Estado de México, Cerro de Coatepec, S/N C. U., C. P. 50130 Toluca, Estado de México, Mexico |
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| Abstract: | A method based on neutron activation analysis was developed for the determination of fractions of milligrams of 2,4-D (2,4-dichlorophenoxy
acetic acid) in aqueous solution in laboratory tests. The indirect determination of 2,4-D was based on the quantification
of chlorine,38Cl, produced by neutron activation. The range of application was 0.01–100 mg l−1. No loss of38Cl by chemical effects of the nuclear reaction was found. The advantages of the proposed method include high precision and
sensitivity of determination. Results were compared with those obtained by UV-Vis spectrophotometry, where concentrations
less than 1 mg·l−1 were not detected. |
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