Abstract
The observed concentration of linear alkylbenzenesulfonate (LAS) in some coastal ecosystems of the Gulf of Cadiz are a function of the lack of sewage treatment plants, the water depth and the rate of renewal of the receiving water course. Concentration ranging from 2 to 510 μg.L‐1 were found in the waters of the Bay of Cadiz. Concentrations of LAS in sediments ranged from 0.4 to 49 μg g‐1. A procedure based on solid phase extraction has been developed for the isolation and concentration of LAS in environmental samples; this enables the subsequent determination of the concentrations of both total LAS and its individual homologues in marine samples with a complex organic matrix by liquid chromatography. It is a simple, sensitive and specific method.
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