Methods for analyzing elements in soils: availability and fractionation

Abstract

This paper presents a review of methods for analysis of metallic elements, mainly for Cu and Zn, in agricultural soils, highlighting those most commonly used. Some of the methods described have a greater scope, and have been used in analysis of sediments, sludge, sewage sludge, sewage sludge amended soils, polluted soils, etc. It also outlines some possible lines of future development of these methods.