Determination of mineral and trace elements in leaves of four fruit trees (Argan, Olive, Carob and Almond tree) by inductively coupled plasma optical emission spectrometer

Abstract

Eleven minerals (Zn, Cu, B, Ca, K, Mn, Mg, Fe, P, S, and Na) were determined in leaves of Moroccan fruit trees such as argan tree, olives tree, carob tree and an almond tree. Dry digestion procedure and acid digestion for total concentration were used. Al mineral elements were determined by inductively coupled plasma optical emission spectrometer (ICP-OES). The obtained results show that the compositions of the four trees are divided into two main classes. The first class contains sample Argan leaves. The second class has two subclasses, one containing sample Carob leaves and the other containing olive leaves and almond leaves.