Electrochemical method was developed for the trace determination of zinc metal in vegetables using simple polarography by mercury drop electrode. This apparatus has three electrode assembly, dropping mercury electrode as working electrode, calomel as reference electrode and platinum as counter electrode. Dropping mercury electrode had the characteristics m = 2.422 mg/sec, t = 2.5 sec and h = 60 cm, under the conditions of Amplitude 50 mV and 6 mV/S scan rate was used for electro analysis measurements. Electro analysis of zinc metal in vegetables was performed in HCl buffer (pH=2.5) quantities of Zn was determined. Half wave potentials were 1.02 Volt for zinc. A considerably higher amount of zinc was found in all the vegetables, which vary from approximately 0.894 to 6.914 ppm. Highest amount of zinc was recorded in Luffa cylindrical of site-I (6.914) followed by Brassica oleracea var.  botrytis.

Keywords: Zinc, Dropping Mercury Electrode, DC Polarography, Vegetables.