Uptake of Lead in the Leaves of Vitex Negundo Linn. (Lagundi)

Abstract / Excerpt:

The uptake of lead in the leaves Vitex negundo, Linn. (lagundi) was determined. Seedlings were planted in sand which was acid-leached and treated with known concentrations of lead nitrate. The presence of lead in lagundi leaves was determined by Atomic Absorption Spectrophotometry using the acid-digestion and dry-ashing methods. Using the single-classification ANOVA, it was found that lagundi took up lead from the medium where it is planted. The lead uptake was evident from the higher concentrations found in lagundi grown in the treated pots versus that of the control. Lagundi leaves from the control gave an average concentration of 5.14 Pb/g while the leaves from pots treated with 5ppm and 10ppm lead nitrate solutions gave average concentrations of 8.42 and 10.78 pb/g, respectively. Of the total lead present in the pots, the lead in leaves account for only 0.03 to 0.07%. Both sample preparation methods were found to be efficient as shown by the high percentage recovery of the lead added.

Full Text

The uptake of lead in the leaves Vitex negundo, Linn. (lagundi) was determined. Seedlings were planted in sand which was acid-leached and treated with known concentrations of lead nitrate. The presence of lead in lagundi leaves was determined by Atomic Absorption Spectrophotometry using the acid-digestion and dry-ashing methods. Using the single-classification ANOVA, it was found that lagundi took up lead from the medium where it is planted. The lead uptake was evident from the higher concentrations found in lagundi grown in the treated pots versus that of the control. Lagundi leaves from the control gave an average concentration of 5.14 Pb/g while the leaves from pots treated with 5ppm and 10ppm lead nitrate solutions gave average concentrations of 8.42 and 10.78 pb/g, respectively. Of the total lead present in the pots, the lead in leaves account for only 0.03 to 0.07%. Both sample preparation methods were found to be efficient as shown by the high percentage recovery of the lead added.

Info
Source JournalAgham Mindanaw
Journal VolumeAgham Mindanaw Vol. 1
AuthorsMa. Cleofe N. Badang
Page Count3
Place of PublicationDavao City
Original Publication DateJanuary 1, 2003
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