A Matrix Modification Experiment for Use in Electrothermal Atomic Absorption Spectrophotometry

Abstract

The advantages of matrix modification are explained in relation to the direct determination of trace metal ions in natural or artificial seawater. An experimental procedure is described leading to the determination of Mn2+ in seawater using matrix modification to eliminate interference effects from volatilized NaCl. The procedure is adaptable to the determination of other trace metal ions in seawater.