Microanalysis of zeolites

Resumo

A method for the determination of the aikalies, alkaline earths, iron and manganese on very small amounts of material (10 mg even 5 mg) by atomic absorption spectrophotometer is described. The method is suitable for the silicate minerals poor in Fe and Mg (zeolites, feldspars and feldspathoids). The results of the determinations on four standard rocks (3 granites and 1 tonalité) and on two zeolites, respectively rich in Ba and Sr, are compared with the data of literature.