Serum zinc, copper, calcium, cobalt, magnesium, cadmium, nickel, chromium and titanium of 60 normal controls and 45 hypertensive patients were measured by spectraspan-V emission spectrometer.The results showed that the serum levels of titanium, zinc, calcium and cobalt in hypertensive patients were significantly lower, however the magnesium and cadmium were higher than that of the normal controls. The serum levels of chromium, copper and nickel between these two groups were not significantly different. A significant positive correlation (r = 0.3213, p