In vitro bioaccumulation metabolic studies of heavy metals by aquatic duck weed lemna polyrrhiza L. (lemnaceae)

In vitro experiments on chromium, copper, lead and zinc heavy metals bioaccumulation using duck weed Lemna polyrrhiza L. (Lemnaceae) was conducted with 5, 10 and 20 mg/100 ml concentrations for a period of 20 days. The SEM-EDX results revealed the bioaccumulation of lead as high as 20.91% followed by copper 9.71%, zinc 5.66% and chromium 1.86%. There was a change in the pH of the medium, the bioaccumulation of metals were confirmed by FTIR analysis involved in the binding characteristics of alcoholic, phenolic, amino and amides groups in the biomass. Unique metabolic studies of heavy metal sorption have been predicted using GC-MS analysis.