Detection of metals by differential pulse anodic stripping voltammetry (DPASV) in pollen collected from a fragment of the atlantic forest in Piracicaba/SP

Talita Antonia Silveira, Diogo Feliciano Dias Araujo, Luis Carlos Marchini, Augusta C.C.C Moreti, Ricardo Alves Olinda

Abstract


Detection techniques of trace elements have high costs for routine analysis while differential pulse anodic stripping voltammetry (DPASV) has low operational costs and few structural requirements. This technique was considered a good alternative for pollen analysis. In the analyses, Zinc, Copper and Lead showed concentrations higher than the threshold established for human daily intake of food; however, Cadmium concentrations did not exceed the limits. The high concentrations found may be explained by the geographical locality of the apiary, which is located near the main road to access the city and a water and sewage treatment plant. In addition, other anthropogenic processes, namely agricultural, industrial and residential activities may have influenced. The technique of voltammetry can be considered a good alternative for pollen routine analysis, providing accuracy at lower costs. The study provides information about the contamination of the matrix of bee pollen.

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DOI: http://dx.doi.org/10.5132/eec.2013.02.005

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