Determination of some minerals and trace elements in two tropical medicinal plants

Abstract

To determine the minerals, Iron (Fe), Sodium (Na), Potassium (K), Manganese (Mn) and trace elements, Lead (Pb), Copper (Cu), Cadmium (Cd) and Zinc (Zn) in two tropical medicinal plants (Syzygium caryophyllatum and Syzygium densiflorum). All the elements were determined by using atomic absorption spectrophotometer (AAS). The average concentrations of Fe, Zn, Cu, Mn, Pb and Cd detected in leaves of Syzygium caryophyllatum and Syzygium densiflorum were 99.275±0.022, 17.302±0.010, 45.498±0.072, 47.344±0.021, 7.634±0.050, 0.253±0.003 and 93.829±0.015, 17.412±0.064, 64.866±0.058, 31.777±0.051, 6.768±0.010 and 0.343±0.004, respectively. The mineral contents in the medicinal plants are at different levels. Therefore, these medicinal plants are rich in some essential elements and very least amount in trace elements, especially Fe and Mn which are essential for human health.