Elementary chemical analysis in leaves infected by fumagina by x-ray fluorescence technique

Abstract

Energy Dispersion X-Ray Fluorescence Technique (EDXRF) was employed to study the effects of the fumagina disease on the elementary chemical composition of the leaves. The experimental set up consisted of a Mo X-ray tube (K ∝ = 17.44 keV) with Zr filter and a Si (Li) detector. The measurements were performed with the infected and healthy leaves of citric plants. The elements Ti, Mn, Fe, Cu and Zn were quantified, with an average DL of 69, 12, 8, 4 and 4 μg.g-1 respectively. The obtained concentration for Fe varied from 44 to 192 μg.g-1 in healthy leaves and from 363 to 704 μg.g-1 in infected leaves with fumagina.