Determinació de metalls en aerosols atmosfèrics pel mètode de combustió en matràs tancat

In this work a new filter destruction method for the determination of metals in atmospheric aerosols is proposed. This methods is based with the closed flask combustion for mixed cellulose esters filters descomposition. For this purpose optimum operating conditions are established. The results obtained by the new method are compared with those found by wet attack (recomended for standard methods).

The accuracy and precision of the proposed method ussing AAS for the measurements is given.

The method proposed is rapid, has a low reagent contamination, has a low cost and is simple.

This method has been employed to the determination of Pb, Cu, Fe and Mn in atmospheric aerosols in Pedralbes area from Barcelona.