Browsing by Autor "Agni R. Saavedra"

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    Determinación de plomo en polen apícola de Brassica napus L. del Páramo de Misintá, estado Mérida, Venezuela
    (2007) Agni R. Saavedra; María Luisa Di Bernardo; Carlos Rondón; Luis Gutiérrez; Oswaldo Saavedra; Isbelia González; Patrícia Vit
    Bee pollen is the second product of the comb most consumed, after honey; however, there are no regulations for its quality control in Venezuela. The oligoelements of pollen have been studied for their nutritional, medicinal or toxic functions, and also, as indicators of environmental pollution by the analysis of heavy metals. In this work, the concentration of Pb was evaluated in bee pollen of Brassica napus L. in the state of Merida. The Pb analysis was done by electrothermal atomic absorption spectroscopy (ETAAS). A concentration of 268.31 ± 0.0008 ∝g Pb/kg fresh bee pollen of Brassica napus L. was found. The method for the analysis of lead was validated by recovery studies, a value of 101.0 ± 4,8% was obtained for lead, and the relative standard deviation (RSD%) was lower than 5%, indicating that the method was exact, precise and free of interference.