INVESTIGATION OF OPTIMIZED HOMOGENIZATION BY BALL MILLS FOR QUANTITATIVE CHEMICAL ANALYSIS IN SANDY SOILS

The efficiency of homogenization was studied by examining particle size distribution and element quantification in the sandy soils using the ball mills. The following parameters were optimized – sample volume, oscillation frequency and grinding time. The homogenized soil fraction with ~ 85% of particles with sizes below 40 m was established to give high precision and accuracy of quantitative analysis of the results.