RT journal article T1 Biodegradation kinetics of Linear Alkylbenzene Sulphonates in sea water A1 Perales Vargas-Machuca, José Antonio A1 Manzano Quiñones, Manuel Alejandro A1 Garrido Pérez, Carmen A1 Sales Márquez, Diego A1 Quiroga Alonso, José María A2 Tecnologías del Medio Ambiente K1 biodegradation K1 kinetic K1 linear alkylbenzene K1 sea water K1 surfactants K1 xenobiotics AB This article reports the primary biodegradation kinetics of linear alkylbenzene sulphonates (LAS) in sea water from the Bay of Cadiz (South West of the Iberian Peninsula). The authors used the biodegradation test guideline proposed by the Office of Prevention, Pesticides, and Toxic Substances of the United States Environmental Protection Agency; 835.3160 “Biodegradability in sea water” in its shake flask variant. High performance liquid chromatography (HPLC) has been employed for the analysis of the surfactant material. The surfactant shows a primary biodegradation kinetic in accordance with a logistic model, the kinetic parameters t50 and lag time were calculated by means of a easy quantitative procedure introduced. Mean values of 6.15 ± 0.45 and 6.67 ± 0.6 days were obtained for t50 and lag time, respectively. These results indicate that although LAS has a high primary biodegradation rate in sea water, it biodegrades slower than in similar tests conducted in river water. YR 2007 FD 2007 LK http://hdl.handle.net/10498/19659 UL http://hdl.handle.net/10498/19659 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 08-nov-2026