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Uptake and Distribution of Zinc, Cadmium, Lead and Copper in Brassica napus var. oleífera and Helianthus annus Grown in Contaminated Soils

2003; Taylor & Francis; Volume: 5; Issue: 2 Linguagem: Inglês

10.1080/713610177

1549-7879

E. M. Herrero, Ángeles López‐Gonzálvez, M.A. Ruiz, José Antonio Lucas, Coral Barbas,

Heavy Metals in Plants

Brassica napus var. oleifera and Helianthus annus were grown in artificially contaminated soils. Accumulation and translocation of the environmental pollutants zinc, cadmium, lead, and copper, was evaluated in different portions of the plants at two harvesting times. The distribution into the plants of these metal ions, as well as their capacity for contaminant phytoextraction and accumulation was assessed. For this purpose, an analytical method utilizing focused ultrasound employed for extraction and stripping voltammetry for measurement has been optimized and validated for the simultaneous measurement of Zn, Cd, Pb, and Cu in plant extracts.