Determination of trace metals in polymers by flameless atomic absorption with a solid sampling technique

A method for determining trace metals in polymers which combines flameless atomic absorption with a solid sampling technique is described. The method is applied to the analysis of iron, copper and chromium and is compared with results obtained from analysis of solutions of the polymers. Optimal conditions for achieving maximal accuracy and sensitivity are discussed. The effects of various matrix interferences and the heterogeneous distribution of trace metals in polymers are discussed.