Determination of mineral elements in Moringaoleifera leaves by microwave digestion and ICP-OES method

Contents of 32 mineral elements in Moringaoleifera leaves in Fujian were analyzed by microwave digestion and ICP-OES method. The results showed the content of 32 mineral elements in Moringaoleifera leaf powder(100 g) are as follows:K 1550.555 mg, P 565.125 mg, Mg 324.310 mg, Ca 1692.072 mg, Ba 0.627 mg, Sr 3.511 mg, Al 13.373 mg, I 14.798 mg, Fe 16.482 mg, Mn 6.246 mg, B 2.203 mg, Zn 4.755 mg, Cu 0.759 mg, Mo 0.104 mg, Ni 0.051 mg, Ti 0.085 mg, Ag 0.925 mg, Bi 0.015 mg, Ru 0.076 mg, Sm 0.002 mg, Au 0.037 mg, La 0.156 mg, Ce 0.181 mg, Co 0.022 mg, Se 0.066 mg, V 0.159 mg, Cr 0.100 mg, As 0.015 mg, Sn 9.353 mg, Cd 0.005 mg, Hg 0.000 mg, Tl 0.039 mg. The study demonstrates that the Moringaoleifera leaves embrace lots of macro-elements and micro-elements which are beneficial to people’s health.