DETERMINATION OF ANIONIC SURFACTANT TURKEY RED OIL BY CAPILLARY-ELECTROPHORESIS WITH DIRECT UV DETECTION

A method using capillary electrophoresis with direct UV detection has been developed and validated for the determination of Turkey Red Oil ( sulfonated castor oil). The highest performance with respect to separa tion efficiency and analysis time was achieved with 30 mM Tris (pH 8.0 ) buffer containing 7.5 mM HP-beta-CD. The feasibility of the proposed CE method for the analysis of Turkey Red Oil surfactant in industrial water samples is demonstrated. Spiking of real samples gave recoverie s between 90 and 106%. The CE results were compared with that obtained by GC-MS. It was concluded that CE can be a good alternative for fast determination of Turkey Red Oil component distribution in industrial process waters with no sample preparation other than dilution. However , the method sensitivity is not satisfactory for monitoring surfactant level in a waste effluent stream.