eng Ansari Education and Research Society Journal of Ultra Scientist of Physical Sciences August 2008 20 2 297 300 jusps-B 1302 article JAYA JAIN 1 Department of Chemistry, L.R.P.G. Colleg, Sahibbad, Ghaziabad, 201 005 (INDIA) <p style="text-align: justify;">Throughout the geological history of the Earth, trace metals have played key roles in the evolution and maintenance of life. Its ability to react with organic and inorganic compound. It required by all organisms and is essential for number of metabolic reaction as concerned. Therefore, it was tried to throw an insight on certain trace metals viz. copper, zinc, manganese and iron. Concentration of these metals in plant extracts were found to be as Zinc (64ug/g), Iron (158 ug/g), Copper (49 ug/g), and Manganese (18 ug/g). These trace metals also have medicinal values.</p> <p style="text-align: justify;">&nbsp;</p> <p>&nbsp;</p> https://ultraphysicalsciences.org/paper/1302/ Neem copper iron, zinc, manganese.