Abstract
This review describes applications of flow analytical systems to the determination of trace components in seawater samples. Determination of trace components is important to understand the mass circulation, and to evaluate the degree of pollution, however, the trace analysis of seawater is not an easy task because of high salinity of the seawater. The flow analytical system can be solutions for preconcentration of analytes in addition to separation of matrix. Various applications of flow analytical systems for the analysis of seawater are classified with their detection methods.