The goal of the present study was to explore the potential application of USAEME-SFO for the fast analysis of CAs in environmental water samples by HPLC-ultraviolet ( HPLC-UV ) detection. To the best of our knowledge, this may be the first report about the application of USAEME-SFO method for the determination of CAs using 1-dodecanol as the extraction solvent (melting point: 24 1C).